Hand Dryers

I am just another mother that has a very interesting boy. He is very curious in everything. He always tries everything he sees, but he is cautious as well. If i tell him what's gonna happen if he try that certain thing, then he would back off and will just be still and look at it. I remember when he was just two years old, we went to the restaurant and told him that i want to go to the restroom and he said he want to go with me, while we were inside the restroom he noticed there was two metal things sticking out on the wall and asked what those things was. So i explained to him what it does. So he tried it himself and he found out that it was hand dryers. He got so fascinated about it and keep putting his hand under it so the air will blow, very curious boy indeed!