Can I be a slave

If you're talking about the kind of slave I'd send outside in 100 degree weather to cut my front lawn with hand scissors for only a cup of water and a piece of bread then no...slavery is illegal.

If you're talking about slavery in the BDSM sense of the term, you'll need to go to the appropriate forums and websites that deal with that sort of thing. WikiAnswers and Answers are not the right places to look.