It's In The Timing

So I have taken "A" riding every weekend for the last 6 months or so (barr 2 I believe). I have watched her riding. I have remembered the days when I used to ride. And gradually I have thought I might quite enjoy doing it again. Not a light decision, it is probably about 15 years since I last sat on a horse. Today I booked yself a lesson next week. And then about 15 minutes later stuck my nose in where it probably wasn't wanted. Up until now I have kept quiet about being a vet. Really didn't want anyone to know. Today I saw soemthing that concerned me, you don't need to know what, just it presented a risk to the horses and I have had to treat horses for this problem, and it really isn't nice. So I told them. And explained I was a vet and hence concerned.

So, what is the betting that next week I get the most cantakerous, difficult and downright nasty horse they can find?