Back when I served on diesel submarines we had an engineering officer whom I got along with pretty well.We were in home port for a while and he was very happy to be able to spend time with his wife and their baby.
One morning he was really agitated,claimed he didn't want to talk about it.Later in the day over coffee he finally told me what had been eating him:
In the middle of the night his little dog had gone berserk and had started barking and running between the nursery and the bedroom scratching at the door.He jumped out of bed to investigate and just as he got to the baby's crib the nightlight carousel thing caught fire.He managed to run it down to the bathroom and throw it into the tub.
After he got his wife calmed down and he started replaying the episode in his head it hit him that his dog was dead and had been buried in the yard for a couple months.