Continuity mistake: Dr. Kozak enters the lab when Shaggy has the blood tube, and his hands are at his side, but in the next shot, his hands are up by his face.
Buzz Miller: Hey, Wilby, what is it this time?
Wilby Daniels: What about the seven bucks I loaned you?
Buzz Miller: What about it?
Wilby Daniels: Cough it up. Pop pulled the plug on my allowance.
Buzz Miller: Gee, pal, I'd like to help you out, but you know how it is. I've got a date with Allison.
Wilby Daniels: I'm sick and tired of financing your romances.