Three Strikes

When Nathan came home this afternoon from playing with the kids next door, one side of his face was all covered with hives. He said that the neighbors' dog jumped up on him and licked his face. I would appear that Nathan is allergic to dogs. That makes us three for three. I wonder how many strikes it takes to get us kicked out of the allergy game because let me tell you, it is one game I would have absolutely no problem forfeiting.