Let's see....
Wires stripped back too far behind devices touching back box
wires stripped back too far in the control panel
wires pulled tight and tye wrapped or secured around sharp metal corners
wires pulled roughly during wiring, causing nicks in the wire
heat detector and pull station in resturaunt kitchens getting sprayed down during nightly cleanup
leaky roof above smoke detector
non-weather resistant horn strobe placed outside, moisture getting inside box, corroding wire and damaging horn strobe
50 feet of slack crammed into a 4-O box behind a horn strobe getting nicked and crushed inside the boxAnyone think of anything I missed ??