iT happens to the best of horsemen, but, at the same time, my horses rarely if ever got out, and I had to be more on the defensive of our neighbour's horses getting out, esp since they also had a stallion
Our stallion was always kept in a 10 acre pasture, which had three smooth wires, a top rail and a hotwire . A corridor separated his pasture from that of the main herd and mares.
That prevented an accident several times, as I was still working then, thus not home, and our neighbour had no sense of fencing.
He would place a rope over his driveway, and turn his mares out there. More then once, I came home to find his mares had gone through my garden, and then up the corridor, thus next to our stud, with only that top hot wire having prevented a serious wreak
One New year;s Day, while he was away, and when it was 30 below C, his horses got out into the crop field next to us. Since I often ride in that field, when the crops are off, I knew that the gate on the highway side was never closed.
My son and I thus saddled up quickly, with me not taking time to put long johns on,and had to gallop our horses int hat cold, to prevent those horses from getting onto highway 22
Just that fall, some horses had gotten out from Spruce Meadows, of all places, with one driver being killed as a result
I also spent time fixing his stud pen fence, put in another fence line,on our side so there was a corridor between our woods in that pasture and his stud fence, as that pasture was the one I used for my mares and foals.
Even so, the idiot one day, turned his stud in with his geldings, so he was separated from our other herd of horses, by only two smooth wires. That herd had geldings plus young fillies, and I caught that stud just about ready to jump that fence ,and get in with my horses
Luckily I was able to rush over, get hold of that stud, and put him back into his pen. I did have my younger son, who was home from college, come along with a gun. Had he gotten in with my fillies and show gelding (Einstein) and attacked, I would have had no problem dropping him
This went on, several years, with me almost afraid to leave home, not because my horses might get out, but our neighbours.
It is why now we are also putting up a gate at the end of our driveway, having had mini donkeys and a lama, from another farmer east of us, come visiting
He is also notorious for having those animals wander, and almost put some expensive cutting horses through another local rancher's fence
Thus, while accidents happen, to anyone, there is a line between that, and just careless fencing, where those horses get out again and again