Peter Cotton Tail

I know all you parents out there probably teach your children to stay away from strangers, to never open the door for strangers, scream if a stranger tries to grab you, etc, etc. So I was thinking about this the other day and had a thought. We teach all of our kids these safety precautions and then on all major holidays, we tell them a complete stranger is going to come into our house, possibly their room, and possibly bring us gifts. The Easter Bunny, Cupid at Valentines day, a little Leprechaun at St. Patricks day, Santa Clause at Christmas, The Tooth fairy when you lose a tooth. Now my kids have seemingly never been confused about this but I realized how strange it is when a neighbor girl recently lost a tooth and was scared to death the tooth fairy was going to come into her room at night and take her tooth. Even though there was the possibility of money in the deal, she was not having any of it. I'm not sure what precautions she made her parents take to ensure said tooth fairy did not enter the house, much less her room. Does the gift giving excuse a stranger from entering our house and if so, how do we ware children against strangers who try to offer them candy (the proverbial "Do you want a piece of candy little girl?") Does this seem strange to anyone else? Just an observation!