A question based on a false assumption, which you admitted to.
Ding ding ding!
Dinner’s ready! You boys all wash up and come to dinner now. You can play the games after the dishes are done.
No, if I had assumed something, then I wouldn’t have bothered to ask you the question. I observed that something might be the case, and asked a question to determine if it was true or not. You’re really reaching here trying to condemn me for asking you a question.