One of mom's cousins had quintuplets. Two boys, three girls. When it came time for potty training, it was all at once, no separating boys from girls. So one of the girls constantly sat down on the potty with her hands between her legs. When we asked what she was doing, she told us that mommy said that her brothers had to hold their penises so that's what she was doing. She was so proud that she remembered that bit. The boys, you see, were always forgetting.