Well, I think that when you are wanking you just probably put your leg in a slightly 'un-normal' position which halts the blood flow to your lower leg. If you're that bothered, try sitting / lying in a different position.
- Never take anything for face value, never trust the system and never put up with an answer that you don't agree with. It's about time people realised the truth of this world.
CLICK IT NAO!!!