The American Indians native to the upper Great Lakes used a similar technique using the spines of specific rodentia common to the north woods. They called it Porcupuncture however.

Art,

These pumps are roughly the size of a hockey puck or a can of tuna.
Indicate where your seat belt crosses you body and be sure the pump is not in that area. And if you see a box in the operating room that says "Gould" or "NAPPA" on it, go to a different mechanic.

Don