Brad had a few words with the photographer who cut him off in traffic today.

The photographer was defensive and claimed it wasn't him that caused Pitt to fall from his motorcycle. But Brad wasn't having it. He listened to the photog's story but didn't let him off easy.

We overheard Pitt telling him, "Just be careful, dude! How are you gonna feel if you hit someone and cause a real accident?!"

Ironically, Brad recently told W magazine, "My helmet is my anonymity. With it, I’m just another a–hole on the streets."

Apparently he's not that anonymous!