Did you know that Sunday, September 8 is National Grandparent's Day? Neither did I, but, thankfully, Irving Zisman (Johnny Knoxville) has debuted three PSAs to promote the holiday, as well as the upcoming comedy Jackass Presents: Bad Grandpa. Watch as Irving asks grandchildren around the world for condoms and a full massage during this annual event. Plus, in case you missed it last month, you can take a look at the full trailer for director Jeff Tremaine's comedy, in theaters on October 25.