Chris Brown got harassed by some dude while leaving a nightclub and getting into his car the other night, and the whole thing was caught on video.

The guy . . . who at one point identified himself as a gangbanger . . . was jawing at Chris as he left the club.  When Chris got into his car, the guy said, quote, "I ain't never seen a (N-word) jump in a car that fast, (N-word)."

HE'S bulletproof, and the guy said, quote, "I'm a Crip (N-word), hell yeah, I'm bulletproof!"