You know those movies where someone will intentionally cut themselves in order to draw blood

[Baitball Blogger]

for whatever the situation requires? Well, I always wonder why their first choice is to make their cut on their open palms. It doesn't make sense because in the next scenes they're using the hand like nothing happened. Why not the back of the palm, on a fatty section where there's no vein? Like the right eye of Senior Wence's hand puppet (literally hand-puppet.)

[Orrex]

1. Or the back of the forearm, or any of a dozen other places?