Warning: If you see Ryan O'Neal out and about in LA, do not, under any circumstances, say "Hey, Ryan, how you doing?"

If you do, prepare for a response like the one our photog got, which was "F*ggot, shut up!" Our photog then innocently asked him "What's wrong, you having a bad day?" to which Ryan responded, "You are!"

He then proceeded to practically run the pap over with his car. Hey, at least when Lilo attacks, she does it with something that can't maim you for life!