Until you are around someone who understands what you say. Realizing that you just described that blasted cat's (who just walked over your freshly applied tung oil) probable ancestry and never once mentioned felines in front of the Chanter from the local Greek Orthodox Church can be a little embarrassing. Even if he does nearly hurt himself laughing.
Catz can bring out the worst in us. And so many people understand Spanish that it’s of limited use for saying anything you wish people hadn’t understood.