Mom, you should tell the "idiot" that you will be having some friends over to shoot one weekend and let the Mosin guys and the class III guys on here come over and just terrorize him with noise. I bet it would be influential.
Sure gubment makes money from the colts, but the colts are a for profit organization, their profit should be used to pay for their equipment and pay for the place they play. Schools have to pay for their stadiums, why shouldn't the colts. If attendance will support a team and a huge stadium...
Watch a bunch of YouTube videos and do a 25 cent trigger job, Glock 3.5 lb connector, Glock extended slide release, and shoot it until you want to quit, that will tell you about any other modifications you may or may not want. What works for one person may not work for you.
If it is a business policy that you don't like, then go ahead and never go back. If it is one employees attitude that offends, then don't deal with that employee. Those signs will not stop CC, but maybe that business doesn't agree with OC. Spend your money where you want, that's what I do.
If a gun is not responsible for a mass shooting, why would it carry any responsibility in a suicide? If you want it, buy it. The past is past, give it a good future.
Let me be the first to say welcome, and good luck. I have no idea about the gun laws in your country, so I will not be any help, but even a so called hunting shotgun could be cut down ( to a legal length ) to make it a little easier to handle in tight quarters and with practice can be reloaded...