I Laughed About A Dead Cat

I was in the 7th grade and I arrived to my music class a little early, before all other students when saw my music teacher sitting alone at her desk crying. So naturally, I asked her what was troubling her. She said that he had recently put down her cat and continued to talk about her deceased pet. I don't understand why, but I burst out laughing while she was telling me her troubles. I love animals and felt bad for her, but I couldn't help it. I still laugh when I think about it, but now I laugh at how dumb I was and how inappropriate and strange I must have appeared to be.