seen a few fox do that in the past. they generally don't last long!
seen it a few times aswell ,the look on the owners face said it all ,had a rabbit jump a barb wired fence once with the lurcher right up its arse ,was going to go under through a run but a terrier was coming through it never had any were else to go jumped the fence and got away
was out lamping 1 nite with my dog slipped on a rabbit bout 50 yards away rabbit was standing high but didnt move just as d dog was going 2 pick it jumped straight up in 2 the air dog went passed it and rabbit made his escape.i couldnt bel