____    ____    __  ____    ______  ____  ____   _  ______    __    ______  __ __   __
|    \  |    \  /  ||    \  |___   ||    ||    \ | ||   ___| _|  |_ |   ___| \ ` / _|  |_
|     \ |     \/   ||     \  .-`.-` |    ||     \| ||   |  ||_    _||   ___| /   \|_    _|
|__|\__\|__/\__/|__||__|\__\|______||____||__/\____||______|  |__|  |______|/__/\_\ |__|

One guy tore his rotator cuff, another one injured his knee. One unanswered question that authorities will investigate is why it took so long for the bank to uncover the fraud. The tightly compacted, high friction ball could also be spun into a wall in such a way that it would bounce back at the barrier repeatedly.