I go back to work/lab. It's definitely not what I want to do, but it is what's best for me.
It's in the evening so there aren't as many people around and I'd never schedule a therapy session on a day I'd have to teach/have office hours/have to be "put together" for some other reason after.

Usually I leave therapy feeling somewhat emotional and vulnerable, but by the time I get back to the office I want to punch and throw and slam things, probably a reaction to feeling vulnerable. Most of the people who I work with who are still around that late in the evening are kind of aware of the fact that I'm pissed off when I get back from therapy, or at least that I put my headphones in and am not in the mood to joke around. I manage to avoid actually throwing things, but I've been known to be rougher with things than I need to be lol. I don't take it out on other people, but the poor yeast get vortexed and pipetted more aggressively than usual.

But after an hour or two of focusing on bench work keeping my hands busy and mind occupied I'm generally calmer. It's better than going home and being alone and wanting to throw things. The few times I really couldn't handle going back to lab I just went home, but I usually end up feeling worse when I do that.
It also helps keep me safe. I often have pretty intense urges to SH after therapy, but the urge usually passes by the time I leave lab.