Why I don't read horror novels or watch horror films.

[vakkotaur]

In no particular order, a non-exhaustive list:

Cocoanut Grove fire
Triangle fire
Chicago, Peshtigo, etc.
Chelyabinsk (Mayak)
Three Mile Island
Chernobyl
Jamestown
Shuttle Challenger
Shuttle Columbia
Windscale
Bhopal
World Trade Center, Sept. 11
Oklahoma City
Minamata
Sultana
Titanic
Edmund Fitzgerald
Texas City ship explosion
Boston molasses flood
Halifax explosion
Port Chicago explosion
Thresher
Aloha flight 243
Pan Am 103 - Lockerbie
Tylenol poisonings
Influenza
Tambora

...and plenty others as well.

And life goes on.