Can nut-allergic person kiss a person who has eaten nuts?

That question is something that has bothered me for a long time. It just came in to my mind while I bought some chocolate which contained nuts and there read the compulsory "May contain nuts"-text. Which is bit stupid because if you are buying nut chocolate wouldn't be bit stupid if there wasn't nuts? Another thing with the question is too that how long you have to wait before you can kiss that nut-allergic person after you have eaten chocolate, even if you would have washed your mouth?

I did some shopping yesterday. Bought this fabulous hot flamingo red eyeliner, which I'm officially in love with. They also gave me this free sample of JLo's new fragrance which doesn't were off.

Hey, it's just 31 days until the Bullet for My Valentine gig!