Raise a Floppa - The Loop
Do you like this video?
You see an explosive barrel.
This dwarven barrel is highly explosive and instable. It's literally only a matter of time until it goes off.
Click Here to Show/Hide Spoiler Information
See also: Explosive Barrel
It also used to deal 1000 Fire Damage when exploding, but this was removed in the end of 2018, but the change was not announced.