i suspect some people thinking of picking up a tank from rick or damir (or void, I'm guessing) would be surprised by how long they actually are in real life. generally they're not going to be hanging like a couple of inches past the bottom of your shirt, unless your shirt is already pretty long. if you're of average height a lot of them will hit like around mid-thigh, maybe even lower.
the scalloped ones aren't quite so long if I remember right, and silent is usually not so dramatic. Not trying to dissuade anyone, especially on something that's returnable. No harm in giving it a try. More of just an FYI.