In New York City , one step at a subway station was slightly out of kilter with the rest. It was causing people to stumble.
It was only half-an-inch too high, but that half-inch was enough to make people trip up.
To get it fixed, a filmmaker created this video, which has now had over a million views – and the problem is now being dealt with.
Is this worth trying here for a pothole or two?
Hat-Tip : Andrew Sullivan.