Just when you thought you have heard everthing, here is something really sicko. Rollingstone's February edition has an article about the new gay subculture that wants to be HIV+ called bug chasers. The ones seeking out these freakos are called gift givers.
http://www.gazeguide.com/~pozthink/pt020815.htm
http://www.gazeguide.com/~pozthink/pt020815.htm