As the header suggests, I'm having a rotten day.
This morning, one of my pet gerbils, Honey, died. Honey is the little ginger and white one in the pic, the black and white one is Kizzy. She was absolutely fine yesterday but this morning, she had a fit of some kind and there was nothing I could do for her. At least she didn't suffer for ages and she wasn't sick for days or anything like that. And she was three years old, which is pretty good for a gerbil.
Kizzy seems fine at the moment; she's not searching for Honey too much so I'll see how she gets on being on her own.