It's hilarious how different cats react so differently to catnip.

One of our previous kitties, a mean old Calico called Mo, was a classic example of an angry stoner. she LOVED catnip, but boy did she get mean. She would get the catnip then sit there and growl and hiss to herself. Chasing the other two or picking fights was not her thing, just being mean al by hersef was what she liked to do.

Sounds like the Muffin Man is a scrapper at heart, and weed makes him even worse.