Finally found a use for night sights!
Finding your pistol in the dark!
I am a Paramedic, and I ended up getting into a fight the other night at work (crazy person). And as I was flying across the parking lot, my pistol went flying also. I had to leave in a hurry as the cops came flying in (another story in itself), and I just could not locate my pistol. Well we came back about 10 minutes later, and a cop who was helping in the search found it under a car because he saw the sights.
I used to go both ways as to the usefulleness of night sights, but now I am a believer.