Answer:
When you kiss a man, whenever, then you'll get sick, some people have aids, yuck, but that's what I'm not talking about.
What the hell does that have to do with getting sick overnight? You don't even know who your talking to. Hey, if you want to get sick overnight, mix up the nastiest combinations of drinks you can think of, (like milk, orange juice, and soda,) and you should vomit. Unless you like the taste, then try a different combination.