So there's a bear in that fence? Or has he found a way through/over/under it?
-Jake
They can climb right up one side and down the other. Basically like a step ladder for them.
Falling trees (wind or ice storms) can also wreak havoc on fences. Pretty sure Bob can attest to the continual maintenance necessary to keep a fence of that length functional and intact.
"When the going gets weird, the weird turn pro." Hunter S. Thompson