I know its an old thread, but I am just going to have to dig it up for the episode where Perry does two shifts on an ambulance (as an NJ EMT I might add) to fulfill his community service. Best part is when Molly Shannon's character scares the fecal matter out of good 'ole Dr. Cox with the "check under the hood and wait for the siren blast" trick...classic.
"My Last Chance"
"My Last Chance"