Ok, On Martin Luther King day on the 21st of this month i was at my girlfriends house and i was in the front yard sitting on a chair playing with my laptop and all of a sudden i felt a sharp but pretty light poke on my back and i sat up and turned around and saw my girlfriends sisters kid which who is about 2 or 3 years old laughing and then running into the house, i didnt think much of it and then a few minutes later he came back and tried to sneak up on me again with a plastic sword that he had this time. Well all this time has passed and i never worried about this but then the notion came over me about what if whatever he poked me with a needle but then i thought where in the hell would he get a needle from. No one in the family does drugs at all so there should be no reason to suspect that he would have a needle to poke me with. Then i started to really think about it and my girlfriend lives in a pretty bad neighborhood and they have an alley behind there house. What if someone was in the alley and they threw a needle over the fence into the backyard and the little boy found it and then he stabbed me with it. I searched the house and never found one laying around so a can suspect that he never had one in the first place. Is this something that i should be worrying over. Is there any risk for HIV from something like this. Please help me out.