Howsabout some ingenuity. My last crowbar was used to keep a door propped open whilst holding the ramp up that we were shifting some hardware down whilst in the dark*. Other uses include using one for a make shift car jack (one of the proper 2m long crowbars you see a lot on farms), breaking up soil for a garden, a temporary door lock, a temporary noggin while renovating a bedroom, and (of course) as a threatening tool when confronted by a bunch of idiots who feel that fighting me is a good idea.
*Translation: We didn't have enough hands to hold open the door, and he ramp was bending while we were stealing stuff**, so we solved two problems at once
**I used to do physical penetration tests for large corporations. This one was to check physical security to the server room. Also, don't hire Chubb security. They suck.