When you accept delivery of a box that looks like this, look the UPS guy straight in the eyes as you are thanking him.
A friend traveled to Japan for vacation over Thanksgiving. He called (from Japan) to tell me of this great innovation he found there, the warmed toilet seat! Apparently they are very common in the toilets he visited.
The bathroom that Mom uses is in the northwest corner of the house, with two exterior walls. The room is difficult to keep warm, so she sort of jumps/exclaims every time she sits down. When my friend called to tell me of this great thing he had found in Japan, I jokingly (I thought)said "Man, I need one of those for poor Mom!" and told him why.
You do not need to explain to the UPS guy that you have considerate (but slightly crazy) friends who will send you a heated toilet seat when you need one.