I visited a suppliers office for work (a major British company with a swank Central London head office). I used one of the loos in the lobby (there was 3 unisex loos, each with their own separate door and sink inside completely separate from the next).
On the back of the door was a sign showing a person squatting with their feet on the seat and a line drawn through it to indicate no squatting. Like this was a common problem they were dealing with? Do people actually squat with both feet on the seat to do their business on a western style toilet?! I know squatting toilets are common in parts of Asia, but they are on the ground. If I tried to squat on a western toilet I would no doubt fall in and break my ankle 
This brought my thoughts back to about 15 years ago when I dated an Asian guy. We went to his mums house to visit her and his sister. His dad was away on business so it was just the mum and sister at home. I went to use the toilet and the seat was up which I thought was a bit weird since there were no men in the house. Anyway, I put it down, did my business and came back and we visited and ate lunch. I went back to the loo again before we left and the seat was up again. My boyfriend at the time hadn't been to the toilet the entire time we were there. So why was the seat up again??
I didn't have the confidence to ask him, but the first scenario about the signs in the office loos got me thinking about this situation as well.