Humane way to discipline your cat

[DrPizza]

I just yell at the cat & toss it out the door.

 

[PieIsAwesome]

some cats hate the feeling of aluminum foil, try putting some on the counters

That must look stylish.

 

[GrumpyMan]

A simple squirt gun from the dollar store does the trick just fine. Doesn't get 'em too wet, just enough to irritate them into stopping whatever they're messing up.