How long can I sleep on the couch before....

A game my dog Zeus likes to play is "How Long Can I Sleep On The Couch"

It starts by me and my spouse getting ready for bed.
Next, Zeus waits for the signal... okay the lights went out.
The object is to carefully creep up on the couch so that it doesn't creek.
Throughout the night the player (Zeus) must keep one ear up to hear if anyone is going to the bathroom.
Safety: If it's Mom that catches me, then I'm safe. She just gives me the eyeball, says "Blah, blah, blah... bad Zeus" and goes about her business.
If it's Dad, the player (Zeus) must quickly but quitely get off the couch and lay on the floor as if he has been there all night.
TIP: Only move when you hear your owner moving, that way he won't hear your noises.
Winner of the Game: Has completed the mission and has slept comfortably on the couch all night without being detected!

Does anyone elses dogs play this clever little game?