Found this great survey from iShap. Education everyone!

Source: ISHAP

Subjects who were getting tested for HIV/AIDS at iSHAP offices in Seoul and Busan were asked the following question: Although the respondents knew the risks of HIV/AIDS from unprotected sex and the amount of protection provided through the use of condoms, why did they still have unprotected sex?
Out of the 386 recorded respondents:

113 (29%) stated they don't use condoms because their partner dislikes them or refuses to use them.
71 respondents (18%) stated it was because they didn't have a condom.
53 (14%) said it was because they were having sex while drunk.
46 (12%) felt that it decreased sexual pleasure.
35 (9%) answered that they knew their partner was not infected.
27 (7%) answered that they knew they were not infected
16 (4%) answered other
13 (3%) answered it caused pain in their anus (?!?)
9 (2%) felt it would break their partner's trust
3 (less than 1%) answered something about internal ejaculation (any help readers?)

The HIV/AIDS rate is relatively low in Korea, which seems to encourage a lot of unprotected sex... The only way to keep it down, however, is to ensure we are using those condoms. Wrap it up boys!