Here's how it works around here, I hide under the couch all the time. Then along comes the Reilly man and he sniffs...that's the corner of the couch I used to pee on, I wonder if he can smell it, nah, I think he smells me under the couch.
Then he pokes his head under the couch, and
GROWOLLLLLLLL, out I stick my head with teeth showing, giving my mean old growl, and then I give him a few face bites, while he cowers and barks in total and complete fear of me. (k here: umm I see no fear, in fact Reilly usually barks and growls right back and gets in a few face bites himself!)