Here are some phrases about my friends Peter, John, George, Mary, Harry and Calvin:
The boss told Peter that a case like that was unacceptable in the work environment, so he took precautions and changed his lock.
John has lost his home key, but it was not a big deal since he never used it anyways.
George carefully measured the spaces when he made his table, but somehow it got all messed up when it arrived at the destination.
Mary was addicted to control. She aways knew a way to get things done as she wanted using nothing but her fingertips.
Harry learned the hard way not to enter unless he was sure he was in the right place. It got him into a trouble that cost him a month to resolve.
Calvin will often make shifts and alterations in his workflow whenever it can help him build a character.
The goal is to find a word that connects all these phrases.
The keyword is an everyday object that is not obvious on first inspection of any sentence, but unambiguously connects all of them