I just saw an add for a weed blower that mounts to your dock. In the sales video they had an extension cord powering the unit that was looping up to the motor. There were kids playing 3 feet from the blower that was plugged in. If one of those kids knocked the cord out it would be in the water, scary.
Not a good thing,....and yes,...had that cord been knocked out,and landed in the water,...darn right it would have been scary!