They don't call 'em flash floods for nothing, and in a flash those waters can sweep in and tear up buildings, tear down trees and other plants, and even carry cars and trucks away.
In 2011 a devastating flood swept through Toowoomba, Australia, captured on video from a second story office window by whitelightbringer.
The flood waters fill East Creek and start sweeping all the vehicles in the parking lot away, that is, all but one truck driven out of harms way by a guy who's either really brave or really dumb for taking such a risk.
-Via Digg