The Professor had a late night and Karl learns of his love for Phil Collins. In 'How Does That Work?', the Professor tells us all about slime!

Karl helps Professor Nasty talk about how he's feeling after an incident with a Hula-Hoop. In 'How Does That Work?', the Professor tells us something he nose!

The Professor isn't in the mood for sharing while in 'How Does That Work?' we learn how fire works.