Some days just suck, but others are so much better it makes up for the sucky ones. My guess is the teacher(s) having a bad day and you happened to be in the wrong place at the wrong time. You can do this - you're almost there.

A good story to cheer you up. Here is a picture of my last foster. He was adopted by a really nice retired couple and he is treated like a king at their house. The note I received said "It's rained a lot here so Mother and I took Sammy out for a tour."

Now isn't that cute! I'm so glad he went to these people.