Pete Wentz has mocked his Fall Out Boy bandmate Patrick Stump, after the singer was arrested for a traffic violation.

Patrick Stump was taken into custody on Tuesday night (25Aug09) in Beverly Hills, California for an outstanding traffic warrant, and held on a $15,000 bond.The controversy shocked fans, who are more used to Wentz's headline-grabbing antics than those of shy frontman Stump.And the bassist has taken the opportunity to tease his pal on Twitter.com; in a post on Wednesday (26Aug09), Wentz jokes, Dude, when I said u (sic) gotta be the bad dude in fob (Fall Out Boy), I didn't mean 2 (sic) get arrested. How many peeps did u (sic) shank (stab) in jail?