Who's the A-Hole On the Block?

9/3/2008 10:43 AM PDT BY TMZ STAFF
Jonathan Knight just wanted a cigarette -- but taking a smoke break in front of a pack of bloodthirsty autograph hunters ended with one of them calling him an "a**hole" right to his face.

The autographazzi were overbearingly brutal when he didn't sign -- but Joey Mc had Jonny's back.