I do think her girth was a bit too tight, AND the other volunteer I was working with didn't loosen her girth when she put her back into her stall which I was not happy with. The people at this place don't seem to care too much about proper saddle fit, I think they're more concerned about the child falling off and cost of saddles etc so they tighten everything up as much as possible. The horse was fine from like 8:30-11ish, and then started getting upset so I think it was just she was sick of being ridden probably.
Yes, I am aware that these horses were probably lovely until they came to this barn and had to deal with a different person all the time and riders who can't really control their bodies due to different disabilities, etc.
I would love to come out and work with this horse more however this barn doesn't seem to really care. The instructor was right there when this horse bit me, and all she said to do was hold her tighter which didn't make much sense to me. If I hit the horse I'm pretty sure they'll kick me out of there in no time, and they already seem to not like me (just a feeling, maybe they always look angry).
The place isn't open to the public so I don't think I can ride their horses or anything, but once the volunteer coordinator gets back from vacation I will definitely speak with her, as she is 10x nicer about the whole thing. But I make sure to pet this horse and encourage the kids to pet their horses as well to reward her.