How can you make your foot fall asleep?

You can sit in a chair, (or toilet, either works (: ) lean down and look at the ground with your butt still on the chair and, prefferably, your legs folded under the chair. that will make it go faster. you can bring something to do (DS, PSP, book, or something you could put on the ground to entertain) for me, it takes less then ten mins, but im only 10.