As offtopic is stricly forbitten, this is topic for offtopic. Then again when topic is about offtopic, the topics topic is offtopic and it isn't offtopic anymore... So this is fully ok. Topic will be offtopic.
How to use:
Copy the adressbar from the topic you want to post witty and or stupid comment in quote, then insert your stupid or witty comment under it. Example: