A couple of months ago a family friend looked after our dog and my rabbit when we went on holiday. She was given very clear instructions about feeding the rabbit and everything was left out and couldn't have been made more simple. Got back and found my rabbit lying listless in the cage. The friend had gone through the cupboards and given her a bowl of some sort of dog supplements she'd found in there instead of proper food. Unfortunately my rabbit didn't survive.
I haven't seen this family friend since. Even though i don't know her all that well, for some reason I was asked to organise a birthday party for her. I booked a restaurant and it's for this evening. It's time to get ready and I'm feeling very angry again about what happened and don't want to go. Would I be unreasonable to make an excuse and not go?