A very serious and important ethical issue has been brought to my attention. It concerns sit-down/assis starts. What constitutes a sit-down/assis start i.e. what does it mean to sit down, or to be even more precise: If you want to make a proper/halal/kosher sit-down/assis, which body part should be the last to leave the ground? Do you have to sit on your ass (that's arse if you're British) or is a crouching start ok?