Note to any man who dates Megan Fox: If you piss her off, you better sleep with one eye open.

In an interview with Rolling Stone magazine, Megan confesses that she has some anger issues and had even threatened to kill her ex-boyfriend, Brian Austin Green.

"I've had to say to Brian, 'You have to go and stop talking to me, because I'm going to kill you. I'm going to stab you with something, please leave,' " she claims. "I'd never own a gun for that reason," says la femme dangereuse. "I wouldn't shoot to kill. But I would shoot him in the leg, for sure."

I've learned in my own experiences that telling someone 'I'll f*cking stab you' definitely gets your point across better than calling them a d*ck. If Brian's ever found dead, we know who to question first!