I've gone in the trailer with a flashlight and ran my hands over every part of it, even the parts where she probably couldn't even get at, and I had two of my friends and my dad do the same thing. And we haven't found anything!
A few weeks ago she had cut herself by her forelock, and I had to take the browband off her headstall because it kept rubbing and she'd throw her head. Now she has the cut above her eye and a rub mark on her flank.
I always keep her in shipping boots and a thin sheet (unless it's really hot out, and I'm worried about her overheating), and I've checked her 'trailer tack' against where she's cut or rubbed, and it's not coming from any of that.
I just want to start stapling giant mattress to all the walls and floors and trailer her in her own personal padded cell! DX
She's never hurt herself badly -- it's always just superficial little cuts and scrapes that heal up in a week or two, but it still drives me nuts.
Anyone else got a horribly accident-prone horse?