stimulus negotiations
Cleaning
Accidentally mixing of certain cleaning products (mainly bleach with other cleaners) can cause toxic fumes. Add in it’s usually in a small space and it can be deadly
Sound. You can get killed by sonar waves and a defense strategy for submarines against boarding is turning on sonar. It also kills sea life, though.
This video made it to r/all a few months back though I believe they determined it was a military boat’s sonar and not a sub’s. It’s crazy how clear it sounds underwater.
Beach umbrellas. Add enough wind and they get mighty deadly.
An infection. Of any size.
Seriously guys. Sepsis kills.
Please educate yourselves on the warning signs!