It feels like, in any situation where more than 5 people are present, no matter what conversation you're having, there are a group of people who will just happen to catch an edge of a conversation which - when out of context - sounds completely rude. I have no idea why this happens. The particular situation this is based on, the "innuendo patrol" there had been stood right next to me and the guy I was talking to for five whole freaking minutes and suddenly leapt into our conversation the second that line in the second panel was said, and refused to turn the conversation away from the topic of "penis" after that, so I just walked away.
my bad~ *trollface*