Hope he is ok and forgets about it. Maybe a day or two before the stiffness creeps in but hopefully not.
had a really bad experience of electric fencing and sheep wire.
Had a my mare and foal on restricted grazing and one night after dark our dogs go crazy and won't stop barking so I went out to see what was going on and heard like stampeding and our mare calling.
Can't see anything so go get flash light and couldnt believe what I saw. The mare (with electric tape round her leg) going daft trying to jump the sheep wire between us and our neighbours field and the foal wrapped up in the wire on the other side of it.
Husband had to cut him out of it, foal going nuts and me trying to settle the mare. OH had to cut all way down with wire cutters and through a row of barb, the other two rows the foal had snapped.

.
Put a pallet over the hole in the wire and had to leave them out cos I had no stables. Foal didnt look to bad by torch light. Next morning vet put 4 stitches on his rump.
We reckon the mare got caught in the electric tape and ran herding the foal between her and the wire and straight into it.
Frightening to think what they can do to themselves.
Had to get farmer to agree to let us replace the wire, which he had no problems with cos we paid and put up the fencing but it was worth it for peace of mind.