Another recent and tragic fish suicide. After 17 years of perfectly happy swimming around. Or, so I thought. 
My neighbors had some sort of terrier-mix who was always a little highly strung. One year for Christmas, the grandpa came over to the house on Christmas morning dressed as Santa.He walked into the room where the family was gathered, and the dog took one look at him, leaped into the air and yelped, and dropped down dead. The three children in the family were all under age 7. I’ve often wondered how that experience affected their future Christmas gatherings.
My favourite (and irreplaceable) cat died suddenly and convulsively, a day after an HVAC tech visited.
I mention the HVAC tech because Sacco had a history of eating anything left laying around, no matter how inedible it obviously was. I assume he finally ate something he couldn’t just pass into the litter box for me to marvel at. “A 1/2” width rubber band? Really?"