I need help with making decision for my vet school application. Here's the situation: I did 5 days of volunteer at a horseback riding school, and the owner is pretty mean. I really worked hard but for some reason she has a bad attitude and just doesn't like me. Despite trying to persuade her, she's willing to write me a reference letter acknowledging only 2 days (~8 hrs) of volunteer. Edinburgh does not require reference letters, so I could write 5 days on that application instead of 2.
The problem is, if I do decide to include this experience in my application, there's a chance that the school might contact referees to verify this work experience (IDK if it's that common for vet schools to contact placements to verify, but I emailed them and they said it's definitely possible and they do it occasionally). However, I'm worried that she could deny my volunteer hours or say something negative about me. I'm not sure how likely this is, but she's definitely hesitant to write me a reference letter at all.
This riding stables is the only horse experience I have. So I really want to include it as it shows diversity in my work experience, especially large animals, although it's pretty short. Should I even bother to ask her to write the reference letter for the 2 days?
I could really use some advice on what to do in this situation. Thank you!!