I was just looking over my M&P Shield and noticed the warning on the the slide: "Caution- capable of firing with magazine removed". Really? Do you HAVE to put that there? The buyer assumes the responsibility of handling the gun safely upon purchasing a semiautomatic pistol. Nobody is going to pick the gun up and say to themselves: "Jeez, glad I read that just now". Its moronic, and I don't know if there is legislation requiring this warning in Massachusetts, but I am annoyed that someone thinks I should be reminded about the basic function of a semi-auto pistol every time I pick one up.
The same thing applies to the internal locks on S&W revolvers and Taurus semi-autos. In the case of S&W revolvers, the locks ruin otherwise amazing guns. People seek out earlier dash models and no-dash models in favor of the newer and "safer" guns. I can't imagine this helps sales (although the firearm industry doesn't seem to need help right now) and it destroys the resale value of guns with internal locks.
Am I crazy? I don't want kids to pick up their dad's gun and shoot themselves, but I believe the most effective way to prevent this problem is to keep the gun in a safe or holster at all times. I will wait until S&W abandons their locking system before dropping $750 for my 4" 686+.