We're on a hill side so the fence is about 4 or 5 feet on the wild side, but about 10 feet from his yard (the block wall is a retaining wall.) So, it's possible that a coyote could jump over and not get back. I notice the neighbor is checking it at odd hours during the night. It still could be a problem.

I hadn't heard they could get over 12 foot fences! It's all kinda hopeless in that case!