From "What's New, Scooby-Doo?: Simple Plan and the Invisible Madman (#2.9)"
[Pierre, Fred, Chuck, Daphne and Velma are walking through the snow, under the suspicion that Gibby is the Invisible Madman
] I'm telling you, the Invisible Madman *has* to be Gibby!
[remembering the time they solved the "worm monster" case in Mexico
I mean, he did create that whole Worm Monster! In Baja?
[Pierre is confused
] "Worm monster?"
Does this stuff happen to you guys a lot?
[at the same time
] Too often.
[same time as Velma
] Once in a while.