Apparently they've run out of ideas for things to do in their spare time in Japan.

Hajime, a Japanese teen with far too much time and money on his hands, pulled off the Diet Coke and Mentos experiment on a much grander scale with his own bath and a hell of a lot of Coke and Mentos and mess.

We're not going to lie, this really isn't as dramatic as one would have hoped it would be. We guess the alternative would probably have been lethal though, so maybe it's for the best.

Via YouTube