When you do 98% of the work, a coworker comes in and does the final 2% to complete it and they get 100% of the credit.

I loosened it up for you

Not enough kinetic energy

My father was an FBI agent and the FBI has to work all bank robberies because the banking system falls under federal law in the US. His office near the end of his career was in a building 8 stories up and on the ground floor there was a bank. They got the call for a bank robbery in progress for the bank in the lobby. Young agents were running for their guns and hitting the elevator and the stairs. My dad quietly walked over to a supply room and got a pair of binoculars and headed for the window. As the thieves sped away he got the car description and phoned it to the local police who nabbed the perps a half mile away. Wisdom

For all you guys thinkingvthe hammer did nothing, observe the wall separation on the left

The jackhammer was there to nudge it off. If they started with the jack hammer, they likely woul have made a hole instead