Even if you go on to other jobs I still wouldn't send this. When I leave a job I try to do so as quietly and professionally as possible. You never know who you will wind up working for again. Maybe this company buys a company you go to work for. Maybe the company you go to work for buys this company and someone there gets put in a position over you again. Maybe you leave to go work elsewhere and someone from your current company goes to work at your new company. Even if they aren't in charge of you the possibility of them saying something like "Hey that guy worked for my old company and before he left he sent this really weird letter about carrying a gun at work. You guys should watch him." is there. Sure your letter is well written and makes sense. To us anyway. To some narrow minded person who is set in their ways and won't change it may seem a completely other. Also people will spread rumors based on half truths and for all you know you might get a reputation of having been fired for carrying a gun into work even though it never even happened. Office gossip spreads like fire and often has no or very little truth behind it. Also I hate to say it but these guys are probably either never going to see the letter or never really read it. Their secretaries, assistants, or whatever will intercept it and deem it's not worth their valuable time. Even if they say they have an open policy about employee problems blah blah their headquarters is still too far away for you to actually talk to the big bosses so for all you know they just say they are an employee focused company to make the employees feel better.
Just my opinion but never shake the bushes when they will never drop fruit no matter how hard you work. It's not worth all the thorns you have to cut yourself on to get nothing in return. Also don't go looking for trouble. It usually finds us when we aren't looking for it enough.
