Boo once, get it out of your system, and then move on. i don't do it, but I get it. Vulgarity has always made me uncomfortable.
At the last War on I4 game at Ray jay, we were near a drunk fan that was very frustrated with the USF performance. It started with the middle finger, moved on the swearing like sailor. I chose not to approach him, as I did not need to get punched. We had my future 6 year old grandson with us, and it was impossible to shield him from the language. We asked to be moved. Fortunately, they found us some open seats IIRC.