It really is... making a splash is so cool. When we were young we used to take a stump. Take a can of soda pop and shake the devil out of it. Then set that on the stump. Then balance a chunk of firewood on top of the soda pop can. Then we'd back off and shoot that soda can with a 30-06. The can would of course explode and the trick was to set the chunk of wood on top of the stump without it falling over.
I will have to get brave and set out the camera on video and see if I can make a movie of a box. I have a program called Picasa3 that will let you adjust the part of the video you want, splice out the other and then just save the part you want as a wav file I believe it is.