Living with Bob and "Al"

Bob has a very bad back, he has been watching the commercial for those patches you put on your back to stop pain and soothe. ( His back is way past any of that type of thing helping) but he wanted to try them. So Sheri picked some up while they were out. When they got home she told Bob she would put one on his back for him. He was very excited. Sheri put it on and Bob laid down on the bed to rest. All of a sudden "Al" says, "Oh no" Sheri responded "whats wrong" "Al" says "well, you put that patch on my back, but now I can't lift my legs." Sheri not knowing what to say replied, "well you needed to take a nap anyway right?" "Al" replied "yep, maybe the patch will have worn off by then."   :)