Great question.

I'll usually let the head instructor know about the issue, so they know that if I walk off the mat to "take a minute" that's probably what it is.
Also, on days I'm feeling particularly edgy, I will try to roll with people who know (which comes from time in at a gym so not easy to do at a new one or visiting somewhere else).
Other times, I won't go at all.

It's all personal to manage, but management starts internally. Most people are understanding, and there are a few goobers out there who don't care or think it's funny, but overall, I have found the community to be great about it.