One of the reasons that I’m not a fan of stock lines is that 99% of the people who use them only use them because they have heard other people use them. Not because they fit their performing persona or move their show forward, but simply because other people use them.
Recently I saw a magician and he asked where I was from, and I said “Seattle” and he replied “I’m sorry”. This is a very old gag and not a good one. I replied with several reasons why Seattle is an amazing city and he had no follow up. Was I “heckling” him? NO. He asked me a question and opened up a dialogue by putting down where I live. Had he had a joke set about why he dislikes Seattle that wasn’t connected to asking me question, then I would have been heckling. However he asked the question to me, which opened a dialogue…and he didn’t have the point of view or comedy skills to follow up. I wasn’t even funny, just factual with my response.
My point is that if you ask a question only to have your “comedy” response, you might want to rethink why you ask. Especially if your comedy response potentially insults someone. That brings me back to why I dislike how most stock lines are used, the performer doesn’t think about them. So if you use stock lines, think about them…what they are really saying beyond the laugh (if there is a laugh).