Bill to let concealed handguns in places that served alcohol in Tennessee

A debate is being stirred up over cutting back on gun free zones in Tennessee:

The latest example of this pro-gun mindset is a proposal in the legislature to allow people with handgun-carry permits to carry guns into establishments that sell alcohol. The bill would allow a gun to be carried into the place as long as the person with the gun is not consuming alcohol and as long as the owner of the establishment has not banned firearms and has not posted a sign saying no guns are allowed.
The Senate passed the bill 24-6.
When assessing all the places where an ounce of public safety should be considered, barrooms would be one of the last places where any sober soul would allow guns to be carried. But here's a move afoot in the legislature saying it makes perfect sense to allow people to pack heat in saloons.
Proponents of the bill say it's all about self-defense, with a litany of scenarios where it would be a good idea to have a pistol handy. Some recount real-life situations where, by gosh, if only someone had a gun they could have stopped this bad thing from happening, naturally assuming the shooter would always make perfect decisions and have perfect aim, just like in the comic books. Or they think of all the "what-if" situations, like what if a bad guy is going to throw the prom queen on a railroad track and wouldn't it be great if somebody had a gun to shoot the bad guy down before a train came roaring by. So we need a law. . . .

1) Name some examples where a concealed handgun permit holder has harmed others in such a place. (I can think of one minor example.)
2) "Some recount real-life situations" -- well, I can give you lots of examples, and when this happens it is amazing how infrequently permit holders have actually had to fire their weapon to stop the attack. The problem is that these "gun free zones" attract attacks.