Ya know how you scoop water into your hand and drink it from the tap? You just make your hand into a lil cup and bring up a small mouthful of water. I just tried to do it with my left hand (I'm right handed) and basically my hand didn't know how to do it correctly. I mean - it managed. But it was so half assed. I knew it wasn't my "dominant" hand - I just didn't realize it was my retarded hand.