I was sitting right here reading BYC few minutes ago and suddenly heard the ducks practically screaming!! I was outside in seconds in my slippers in the snow, saw the fox in the pen, tripped and fell into the electric fence. I screamed bloody murder and the fox ran off! I counted all the ducks, (they are all there!!) and locked them up just now. I usually wait until 8:00 or so thinking the fence would protect them, it has worked up till now, since Feb. 2009 anyway, but the fox got through it somehow, I was so upset I can't remember if he jumped it to get out of the pen or went through the wires.