Although not personal, the Fire Dept responded to 10+ burst fire sprinkler issues.
I had to respond to a 5 story hotel; blown pipe on 5th floor...water all the way down to grade. Panels in first floor electric room in path. Another was in a condo bldg., three floors, six units affected. One at mall, sprinkler line in entry foyer area, nice mess, water in lower level gym.