Paraguay has presented a previously unnoticed complication of being left handed:
Generally in Latin America you don`t flush your toilet paper, you put it in a little waste basket beside the toilet. Since most people are right handed the waste basket is usually on the right side of the toilet. In my house it is on the left. But when I use the "water" in other places, I have to reach across myself with the dirty paper to throw it out. This is gross.