10 month old not jumping 5 bar gates yet il get him up there slowly but when out and about most wire fences i come across are around 4feet high give or take and he just jumps the lot no problem but will the twat jump 2 foot into the back of a corsa van,will he feck,suppose next move is to climb in myself first and encourage him in,prob should done it months ago certainly thought he grow out of it by now and leap in,sooner the better he getting fecking heavy lol,might be something to do with jumping into an enclosed space maybe?