My 3 year old nephew was just potty trained at home. The next day
at his day care, he woke up dry from his afternoon nap. Wanting to
make sure that he stayed that way, the care provider immediately
took him into the bathroom so that he could go. After standing in
front of the toilet for a couple of minutes with nothing
happening, he looked up, shrugged his shoulders, and said "It
worked at home!"