The owner had been assigned to make the final safety checks on a series of explosive charges set for the controlled demolition of a large building. Somehow, me managed to drop his knife down one of the charge holes. With the armed explosive in the hole, to get his knife out safely would have required an elaborate and time-consuming procedure. The countdown was already underway. This type of demolition involves stopping traffic, evacuating adjacent buildings, emergency services standing by, etc. So, unless there's a serious problem, the show must go on as scheduled. As a result, he had to simply abandon his knife. Later, while inspecting the site for any possible unexploded explosives, he found the twisted remains of his knife. As a joke, he sent it to BM for LifeSharp service. BM replaced it.