Trivia: Tim Burton appears in a cameo when Pee Wee is accosted in the alley on his way to the psychic. He says to Pee Wee, "we don't take kindly to strangers on our turf!" (00:30:35)
Trivia: Just as Pee-Wee walks into the Joke Shop at the beginning of the film (after he chains his bike to the clown), there is a mini-poster of Elvira on the shop's wall. (00:14:25)
Trivia: Despite his child like appearance (as it is meant to be), Paul Reubens was around 33 years old when doing this movie.
Answer: It was some sort of gag gum (popular in the past) that either had hot pepper/cinnamon or simply tasted terrible.
Brian Katcher