There is a term "bug-chasers" that has been used since the late 1980s or early 1990s that describes homosexuals who do everything they can to catch AIDS. These people are sick in the head.
They probably hate themselves, and they are likely in extremely small numbers that probably are in single-digit percentage. But there are many that more that are just careless and believe themselves to be immune. The one that fall into category believes it only happens to others, but not me.