So many of them became depressed and distraught because they were trained to find live bodies, and when they kept finding remains, their handlers and other rescue workers began to hide in the wreckage so the dogs could do live finds.
These dogs provided immeasurable help to those that were working the scene, bringing great emotional support just by being around the rescuers.
Matthew Mercer (voice actor for McCree) also said during a panel at A-kon that he’ll say “It’s High Noon” while playing overwatch, and people will think it’s a McCree using his ult, and freak out.