Barbed wire is a fun material to work with.
I've had to work with it a lot lately. Someone has decided to cut the fence even though they could easily walk in or climb over. I don't get it. I don't own a comealong, which is a piece of equipment that will provide good tension. I have to use a couple of claw hammers instead. They work fairly well. One of the tricks is making sure the wire ends are wrapped tightly enoug. Otherwise the tension can be your enemy. I had one section of wire come apart unexpectedly and strike me like a 50-foot metal snake. Just a nick, though it could have been worse.
I have fixed up a pretty good tool bucket for the job now. Hope I don't have to use it often.
Ridgeboy