Basically there was a 4chan thread about a guy putting a grenade in the toilet, apparently he died and it was on the news, but its fucking fake. I found the real website and its an entirely different case.

The real thing that happened:
https://www.publico.es/espana/violenta-explosion-gas-granada.html

The fake 4chan version of the grenade guy:
https://www.youtube.com/watch?v=4c8uTVaB9Ow

Minute=5:37