In other places it's no-climb fence with holes too small for my horse to get her little feeties in on the bottom, and that's fine. In other places it's two strand electric wire, fairly thick and well tensioned, and that's fine, too.
I try not to be picky but the first day there my dang mare went right through some electric wire for the first time in her life and now I'm paranoid that she will try it with that barbed wire!
So, to you, is it worth it to offer to refence the pasture, or would you just ask the man to avoid putting your horse out on the section with the barbed wire? Keep in mind that I am NOT paying him to look after my horse, and it would be rude to say 'I expect you to refence this pasture on your own money and me not pay'
If I do refence it, I plan to use either 1/2" or 1" white poly-tape that can be electrified. I have my eye on some with a breaking weight of 320lbs (my mini is the bigger one weighing in at around 250-300lbs) with 8 conductive strands of stainless steel. The posts are fine, so I would only have to get tensioners and insulators, and possibly only have to refence the barbed wire section. So, give me your thoughts on what you would do