Nine 'Jackass' Pranks That Stand the Test of Time

Here's the very first appearance of Knoxville's character Irving Zisman, better known as the "bad grandpa." Judging by this clip, it's easy to see why an entire movie was later built around him; Zisman is such a monster asshole (smoking and drinking in public, being the worst role model of all time), you can't help but crack up watching him rankle some well-meaning strangers.