The wrongs pile up, and there's a clear object of satire. That feels new for the Jackass experience: a target that isn't a crotch. I'd like to see Irv try to strike again with braver gags.

Onlookers occasionally glance into the camera, a pretty good sign that people are hip to these prankster movies now and just play along.

Secondhand gags, third-rate execution, fourth-rate results.

Plenty of things want to be funny, but Bad Grandpa bites off more than its dentures can chew this time around.