Little Pete's faking food poisoning was a classic episode of the series, still well remembered by fans out there, standing out from the "ordinary" P&P episodes.
As Pete travels further out from his home and explores his world as it can only be explored in a sick day, he begins seeing everything in a different light. My favorite example of this was when he befriends the kid who sits behind him, whom he never talked to before, knowing him only for his excessive use of plaque candy. But through his sickday, he was able to use his new friend to help him get out of a very sticky situation when he gets a president pop cereal piece stuck up his nose. This was one of P&P's finest episodes, perhaps made even more popular when banned in regions of Europe.