In an hour no one could think of anything that would solve the problem better than a hose? Pathetic. Someone should invent a tool that uses pressure (something like the three tools used here, but even more pressure) to eject something more solid than powder/foam/water at a sufficient velocity to solve this sort of problem posed by bears, the Amish, and other problems encountered in the jungles of Canada and big cities. We could call it a Generic Urban/Undeveloped Neutralizer because it would neutralize generic problems, whether encountered in urban areas or in undeveloped countryside, or we might even find a way to shorten that name, somehow.
Wonder how many co-workers watched the hour long attack without firing a shot [ gun free zone ? ] or grabbing a shovel, axe / some other weapons.
G.U.N. LOL!