Oh poor Patience, I know how scared she is. Tucker used to be the same way, but having to go the groomers every so often I think has helped him realize that we when we leave him we do pick him back up. At least she won't come out of this hurting, and you can feel good that you have taken one more step to make her life a healthy and happy one.
And maybe she'll even be happy to see the horses when she gets home.