I think doing this at the end of a technique session is really beneficial. It's our chance to show off what we can do. For some of us it's really hard because there's not much we can show off. Others are really good at tricks, for me I thought it was just a bit of fun and a chance to watch each other and support. But finding out yesterday it's quite serious and you should only do things that your are doing correct. I find it really hard and embarrassing because there is not much I can do.