And probably sage advice as well.
Or at the very least, do not yield. Do not become a compliant victim. If you're much smaller than the bully or bullies, you can still thwart them with mockery and resistance. Whatever you do, don't get all humble. And at any chance, make their day worse. One guy I knew drugged the bully's food and that knocked the idiot out for a few hours; when he came to, the friend told him that they'd had a "special moment." Classic. Another trick is to plant known homosexual items (analube, dildos, etc) on your bully in a public setting.
You can also go with the old fashioned burn his fucking house down, which I suspect is the reason for two partial house fires at my high school.