> What were the pranks which you played with the colleague. If i ask will it be off topic?

From [Help Center](https://superuser.com/help/dont-ask)

> You should only ask practical, answerable questions based on actual problems that you face. Chatty, open-ended questions diminish the usefulness of our site and push other questions off the front page.

> To prevent your question from being flagged and possibly removed, avoid asking subjective questions where …

> - every answer is equally valid: “What’s your favorite ______?”
> - your answer is provided along with the question, and you expect more answers:


So yes, your question is  yet another polling question & will be closed