Well, I technically don't own a garage, but my parents make me sweep out theirs. That takes about 5 minutes to broom, but if you want to move everything out, we're talking a couple of hours.
Idea for the next poll: How many of you have a tap installed on the fridge in the garage?
^^^Tell him that if he ever does that again he will become maroon. Due to a deliberate deprivation of oxygen. (Also known as "Just try and pry my fingers off your neck!")