A day later, the trainer came over to chat and also kindly reassure me that I should be allowed to close car doors within hearing distance of the barn, without people falling off their mounts. The little girl had complained to her trainer after she fell, "Why does the pony get scared? They should never get scared!" Indeed my dear, would it not be lovely if no one got scared? After she caught her breath, she got back on again (it's almost a rule, you have to immediately get back on **barring serious injury** after you fall off). Because that's what happens in life. You get scared, you fall, and you get back on again.
Although I've officially been pardoned, I still can't help but feel guilty that I ruined horses and horseback riding for her forever. To quote Ben Stiller: I killed the thing I love the most! At least her bank account will thank me for it later.