[daTeacha]

Does Superman know about that thing? It could save him a lot of work.

I'm going to go out on a limb and guess that it would not be legal to use it in the U.S. Some safety nanny somewhere would worry that it might land on an endangered salmander or something and cause irreparable environmental harm. Not to mention that it looks like someone is having fun in a way that the nanny isn't able to.