If you've had a bad boss, how did you manage them?

Short term: Fawn over them. People want to be adored, and your crappy boss almost certainly does.

Longer term: Get out of there. You're not a slave, and there are a reasonable number of not-bad bosses in the world.

I quit. One job is pretty much any similar job, and you're going to eventually quit anyway, or the job will drop out from under you one way or another.