Of course! You weren't wearing a hat! Sorry, Carl.

A pumpkin?

*hat

Perry the pumpkin!!!

Witness protection usually works, unless the witness makes contact their old life. The Great Pumpkin just wanted to see Linus one last time...

Little Eddie Mason's all grown up!

(Man, that's in the running for the most obscure reference I've made online...)

"Eight more days 'til Halloween, Halloween, Halloween..."