A SQUAT TOILET!!!! They seem to be more common in places like the Incheon Airport and in the subways but I found this one while waiting for Curt (hubby) to get his Korean driver's license. I have not found a squat toilet in a restaurant or at the large department stores. When I have found them in the subway, the sign on the bathroom door has a picture of the squat toilet so you know before you enter what you will encounter.
Luckily, I haven't had to use one. In this case, all the stalls were squat toilets except for the handicap stall so that is what I used. My Korean girlfriends said that the handicap stall is really only for the handicapped but they understood my need to use that stall. I asked them why Korea just hasn't updated all their toilets from squat to conventional toilets. The reason is that some of the older ajummas (older Korean women) wouldn't know how to use one.
Also, do you see any toilet paper in the stall? You never find toilet paper in public bathrooms so make sure you carry your own. So you wonder what the garbage can is for? That's to throw away your used toilet paper that you brought with you because you don't flush toilet paper in South Korea (but I do). The gas station we usually use gives us a free packet of tissue as a gift every time we fill up so I have accumulated a boxful already in the six months we've been here.