wow! I've never actually seen it happen in person but usually here with the NGrid owned lights the M-250R2 will fall off the pole but the lead wires often stay attached to the terminal block and the terminal block rips out of the fixture! So all you see is a little black cube hanging a few inches from the end of the arm.
NGrid uses impact guns so they must really crank down on the terminal block screws. They crank down on the slipfitter pretty hard too since usually the whole reason the light falls is because the housing cracks from the shock. If the fixture is properly tightened usually the worst that happens is the door swings open and flies off lol. If it's too loose then you'll get a perfectly intact light if you've got a trampoline to catch the fixture when it falls!
