People who talk s**t generally don't do s**t.
Back in High School, there was this little skinhead (the kid would spit on black kids and hung out with a known bigot) who decided to steal one of my personal books. I asked him to return it, but he claimed he never took the thing (even though there was book-shaped bulge in his coat pocket). So at lunch, a friend and I confronted him and his crew, and asked once more for the book back. The head skinhead at the table threatened me with violence if I didn't leave the little thief alone. Considering the situation, there was a chance they'd attack us, but some boys of mine were lined up against the caf wall watching the entire thing. Racist SOBs knew they couldn't do anything without getting theirs as well. (Also, the friend who was with me is a known sociopath who wanted kill the guys himself, just for being disrespectful) Vice Principal eventually came and broke up the argument, and I spent the next few weeks prepared to defend myself from the bigot squad. (I had classes with a few of them including the one who threatened me, these guys carry real weapons, I've seen them). In the end, all their talk was pure s**t, they didn't do a damn thing. I decided to just buy a new book a few months later.
The entire time I was full of adrenaline, a part of me was hoping to kill or die senior year. Good times.