04/02/2009 05:12 am ET Updated May 25, 2011

Rob Riggle's Hilariously Disturbing Anti-Speeding PSAs (VIDEO)

The Ad Council has launched a "Youth Reckless Driving Prevention" campaign, that includes ads featuring comedians pretending to be teenagers who creep out real teenagers in order to get them to stop speeding.

In the following ads, Rob Riggle finds disturbing ways of letting kids know they'll die if they don't slow down, either because of a crash or his fists.


(For more PSAs in this series go here.)