Some tools have to be made or destroyed to get the job done. Nothing wrong with cutting a Snap-on wrench in half, nor welding it to a stuck bolt if need be. The cost of the tool is nothing compared to stopping the job. If it is Snap-on and you break it (I have broken tons of tools, with most being warrantied) getting the job done, so be it. That doesn't mean taking a hammer to a screwdriver, as a better tool should be available. Unless of course you have equipment broken down in the field, then anything goes, with whatever you got.
Now I have been on more Snap-on trucks than most folks, but who can't walk down the isle and just smile at all the shiny tools

If only a tool box could be that well displayed. Well they can be, for more money than most would ever spend on tools, let alone just in tool boxes.