I am sorry, but that just strikes me as totally immature. Why would you even threaten to do something like that, knowing how severe some people's allergic reations can be? (And by "you" I don't necessarily mean you, the person posting, but you in general.) Not only is it immature, it can be down right dangerous. I have an anaphylactic reaction to Levoquin, and let me tell you, it is an incredibly scarey feeling when you are in the middle of that and know exactly what is happening to you, up until the point where you pass out. There are plenty of things I may joke about with people, but intentionally exposing them to an allergen would never be one of them.