I think a good plan is to see how he handles this mistake (because we all make them) after the fact and with a cool head --- I certainly hope he makes some better choices.

If you continue to be dissatisfied with his bedside manner (or lack thereof) then I would start considering finding another vet. Although since you're already driving 2 hours I would imagine good bunny vets aren't too common in your area....

I hope Piper's feetsie sores are just something minor...glad to hear it's not self mutilation!

I wouldn't worry about burning bridges...give him the benefit of the doubt. I mean, he's much better usually, right? You just caught him on a very *off* day, methinks. However, he needs to see the consequences of his actions and so I think a letter would be most appropriate.