That last panel is the face of a stoner if I ever saw one.

Fun Fact: In "Looney Tunes: Back in Action", Shaggy, Scooby, and Matthew Lillard cameo in a scene where Shaggy and Scooby criticize Lillard of making Shaggy look like a "total space cadet", and Shaggy is played by Lillard.

It's brief, but it was honestly a funny scene, and the movie was a bit better than this one and the first Scooby Doo movie.