I've never been personally accused of anything like this.
But... I've looked at past incidents both in the public light and privately among friends and worried that I might have inadvertently screwed up.
For example, the whole PyCon dongle joke incident. This is a case where a couple of guys were being immature and made some sexual joke about dongles. A woman in front of them overheard it, snapped their picture, posted it on Twitter, and they got fired (at least one posted an apology IIRC). Could I have made a dongle joke at a social event in my early 20s? You bet I could have! Esp. because, as an introvert programmer, these kind of events were a great place for me to socialize (vs bars, clubs, etc).
I've witnessed people get called out for much much less. I just don't ever want to be on that side of the table.