All the master Tetris players I've seen use that "leave one column open on the side" tactic. I wonder it thats to keep the distraction of dissapearing rows down to a minimum, or is there some other reason?
I don't see it as that strange. We used a doll specially designed to help model potty-training (for girls), and this might be something that would help two-year-old boys get the idea (especially if they didn't have a daddy around). And for families who don't have any boys, this might take the "forbidden knowledge" or "ew" factor out of teaching girls what boys really look like.
Here's my favorite haka video.
http://www.youtube.com/watch?v=xUkGXULz54c
The language of the period, I know. It also gripes me when a daddy is supervising his own children and people say he is "babysitting."
I would have gotten it years ago if I didn't keep moving to different states with different donation services.