LOL... My boys had to figure that one out too! When I was painting the bathroom last month, the litterbox resided in the hall for a few days. They had no problem with it in the least.

As for litter boxes on carpet, I personally prefer it. I just move the box and vacuum around it on my route to vaccuuming everything else. I honeslty don't vaccuum every day (who has time?) but its never terribly bad or anything. I have even found out my KIDS like to vaccum it up because it makes a cool sound when the litter is hitting the canister - whatever it takes to get them to vaccuum! On the bathroom floor, I have to get otu the dustbuster, and if it landed on the bathmat, then I have to lift and shake the mat for the dustbuster to pick up the grains of litter before they got wet and stuck to the mats. UGH... what a mess!