diff --git a/tests/plugins/yamllint_plugin_example/README.rst b/tests/plugins/yamllint_plugin_example/README.rst
new file mode 100644
index 0000000..e69de29
diff --git a/tests/plugins/yamllint_plugin_example/setup.cfg b/tests/plugins/yamllint_plugin_example/setup.cfg
new file mode 100644
index 0000000..57b81d1
--- /dev/null
+++ b/tests/plugins/yamllint_plugin_example/setup.cfg
@@ -0,0 +1,11 @@
+[metadata]
+name = yamllint_plugin_example
+version = 1.0.0
+
+[options]
+packages = find:
+install_requires = yamllint
+
+[options.entry_points]
+yamllint.plugins.rules =
+    example = yamllint_plugin_example
diff --git a/tests/plugins/yamllint_plugin_example/setup.py b/tests/plugins/yamllint_plugin_example/setup.py
new file mode 100644
index 0000000..a4f49f9
--- /dev/null
+++ b/tests/plugins/yamllint_plugin_example/setup.py
@@ -0,0 +1,2 @@
+import setuptools
+setuptools.setup()
diff --git a/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/__init__.py b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/__init__.py
new file mode 100644
index 0000000..a5d1086
--- /dev/null
+++ b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/__init__.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Copyright (C) 2020 Satoru SATOH
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""yamllint plugin entry point
+"""
+from __future__ import absolute_import
+
+from . import override_comments, random_failure
+
+
+RULES_MAP = {
+    override_comments.ID: override_comments,
+    random_failure.ID: random_failure,
+}
diff --git a/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/override_comments.py b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/override_comments.py
new file mode 100644
index 0000000..64350eb
--- /dev/null
+++ b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/override_comments.py
@@ -0,0 +1,63 @@
+#
+# Copyright (C) 2020 Satoru SATOH
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+"""
+Use this rule to override some comments' rules.
+
+.. rubric:: Options
+
+* Use ``forbid`` to control comments. Set to ``true`` to forbid comments
+  completely.
+
+.. rubric:: Examples
+
+#. With ``override-comments: {forbid: true}``
+
+   the following code snippet would **PASS**:
+   ::
+
+    foo: 1
+
+   the following code snippet would **FAIL**:
+   ::
+
+    # baz
+    foo: 1
+
+.. rubric:: Default values (when enabled)
+
+.. code-block:: yaml
+
+rules:
+  override-comments:
+    forbid: False
+
+"""
+from yamllint.linter import LintProblem
+
+
+ID = 'override-comments'
+TYPE = 'comment'
+CONF = {'forbid': bool}
+DEFAULT = {'forbid': False}
+
+
+def check(conf, comment):
+    """Check if comments are found.
+    """
+    if conf['forbid']:
+        yield LintProblem(comment.line_no, comment.column_no,
+                          'forbidden comment')
diff --git a/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/random_failure.py b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/random_failure.py
new file mode 100644
index 0000000..c061c9e
--- /dev/null
+++ b/tests/plugins/yamllint_plugin_example/yamllint_plugin_example/random_failure.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Copyright (C) 2020 Adrien Vergé
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import random
+
+from yamllint.linter import LintProblem
+
+
+ID = 'random-failure'
+TYPE = 'token'
+
+
+def check(conf, token, prev, next, nextnext, context):
+    if random.random() > 0.9:
+        yield LintProblem(token.start_mark.line + 1,
+                          token.start_mark.column + 1,
+                          'random failure')
diff --git a/yamllint/conf/default.yaml b/yamllint/conf/default.yaml
index 0720ded..9aee263 100644
--- a/yamllint/conf/default.yaml
+++ b/yamllint/conf/default.yaml
@@ -29,5 +29,7 @@ rules:
   octal-values: disable
   quoted-strings: disable
   trailing-spaces: enable
+  random-failure: enable
+  override-comments: {forbid: true}
   truthy:
     level: warning
diff --git a/yamllint/plugins.py b/yamllint/plugins.py
index fa24218..e4be380 100644
--- a/yamllint/plugins.py
+++ b/yamllint/plugins.py
@@ -46,6 +46,7 @@ def load_plugin_rules_itr(entry_points=None, group=PACKAGE_GROUP):
                 if rule_id in rule_ids or not validate_rule_module(rule_mod):
                     continue
 
+                print(rule_id, rule_mod)###
                 yield (rule_id, rule_mod)
                 rule_ids.add(rule_id)