My parents always had a cat when I was growing up and then I made them get me a dog when we moved to Florida at age 10.
All these years I've never been allergic. I've worked at a vet's office, and at the humane society.
I've lived without pets for a few years and now when I go back to visit my parent's house, my nose gets all stuffed up and my eyes itch.
I thought that all of my exposure to pets with no allergy symptoms meant that I wasn't going to have any problems the rest of my life, but I guess I was wrong.