Sounds like something several of mine would do. Pippi can fit under the love seat and there has been a couple of times, I could not find her. She especially will not come out if she thinks you are going to put her in her crate.

Jack just likes to be by himself and if he decides that he doesn't want to come out - he doesn't.

Taggert hides in the bedroom at night and in the morning so he won't have to go to his kennel for bed or for while I am at work.

Crazy dogs worrying their moms!