For those who do, peeing with hands on the floor and butt in the air helps (and you also have the benfit of looking super classy while peeing)
Been there, done that, was offered the TShirt but it was way too classy for me!

On a related note, can anyone extol the virtues of Perineum massage coming up to labour? I guess the theory is sound as far as preparing the area, but considering the vagina etc are so stretchy in the first place, wouldn't any massage just bounce back IYKWIM? Has anyone done it and noticed a benefit, or is it a bit of a myth?
Never massaged and never tore or snipped. Think its just the luck of the draw, so to speak.

Um how do you end up with a 'graze'?
A graze is just a very very very very very very very teeny tiny insignificant tearing of the skin. Its only a slight crack on the top rather than a full on tear.