Casual reminder that working off the clock is illegal. Unless you’re salaried or authorized for overtime there is no reason for you to stay late. None. Your employers know this, too.
Coming over here from Europeland one of the things that’s most bizarre is this concept people seem to have that they need to be working all the damn time. For nothing. If I’m working I’m damn well being paid. I don’t mind the odd 10 minutes here or there, but if you want me to be doing work, you are damn well paying me.
I am super interested in my job, but [company] is being reimbursed for my effort by [customer], and I am having some of that money for myself, thanks*.
* When I want to feel like I’m purely giving back to society, that’s what volunteering is for.