The not-so-subtle insinuations that the OP’s horse is beyond the blanketing skills of “unqualified” people because he’s “athletic” is so silly.
I blanket an OTTB mare that is very athletic. I blanket her loose in 1+ acre field (that has electric fencing) with my gelding also loose in the same field. I blanket her when she’s eating (not near electric fencing, obviously). This mare can run, buck, rear, leap, spin, etc. at the drop of a hat. She doesn’t, because she’s a good girl. Now, obviously if she is cavorting about in high spirits, I’m not going to just walk up to her when she pauses the shenanigans and try to blanket her while she’s still loose, but I cannot even remember a time that was an issue. Blanketing is done at feeding time and feeding time is for stuffing your face in a feed pan or pile of hay. I do not tip-toe around her or my gelding. Blanketing means I’m going to toss this huge piece of somewhat heavy material over your back, sometimes against the wind, and things are going to flap and rustle and buckles may hit you somewhere, etc. The horses seem to know and accept this. Athletic or not (which I would imagine the OP would deem my gelding because he’s…very stingy with his energy, lol).
I feel like “athletic” might be a euphemism for sensitive or something less flattering. If this horse’s “athleticism” is such that he cannot tolerate being blanketed by someone without extensive horse-reading experience lest he may be driven into a hot wire fence, I’m going to go out on a limb and suggest “Sir SpooksALot” earned his nickname from his owner because he…spooks a lot. Not because he’s “athletic.”
I tell you one thing though. Even my Saintly Slug-o-Saurus is going to become instantly “athletic” if he hits a strand of electric fence.
Does ANYONE know if the unqualified young woman got the OP’s horse blanketed on this fateful occasion?