It's logic, Jim... But not as we know it.
Gabe: Ralf, why are you disguised as a baby in a carriage?
Ralf: Because I couldn't use invisibility to escape the treatment center and cross the parking lot...
Ralf: I mean, if you get run over by an ambulance... who takes you back to the hospital?!
Gabe: Okay, I'm starting to nurse a headache now.