What other pets should be avoided if you have a cat?

I don't think there is a simple answer to this question. I have had cats in my house my entire life, and have had carnivorous lizards free roam my house and never had any problems. It greatly depends on the actual cat/s, and the actual other pet. I make sure my cats and snakes never meet, all of my cages are both escape proof and cat proof, as I don't think anything good would ever come of that. But I would never say you shouldn't have a snake because you have a cat.