The 44-year-old said he does not regret his actions either.
"Bradley (Cooper) and the guys love it and all have good attitudes - they're professionals. But I'm just tongue-in-cheek. I think it's funny to run from teenagers and not be nice to them," contactmusic.com quoted Galifianakis as saying.
"Even if I'm playing a part, they'll have a good story to tell their friends, 'Zach Galifianakis was an a**hole!'" he added.
"The Hangover" actor also finds red carpet events hilarious because he doesn't understand why fans stand around for so long just to catch a glimpse of him and his co-stars.
"I either giggle my whole way through it because I can't believe how bizarre it is or I just get agitated. It's never like, 'Oh, this is nice!' I find myself laughing so hard and thinking, 'Don't all these people have something better to do?'" Galifianakis said.
--IANS (Posted on 31-12-2013)