We could've used one of those when we were digging pits to burn unreliable rifle ammo. We got tired of digging so we dug a smaller hole in the bottom of the big hole and packed it with all the older, less stable c4 that we had, which must've been around 22 kilos, and set it off. Unfortunately it didn't blow any of the dirt out of the hole, it just filled the hole full of loose dirt. So we had to dig it out anyway, well I shouldn't say we, I didn't touch a shovel.