There is obvious chaos that is routine in any ER, even at night on a Sunday. One thing I can do, tongue in cheek, is recommend, if you want to off yourself, don't use a nail gun. I've seen it twice now. People trying to, unfortunately, end their lives by using a nail gun to the head.
Maybe it's actually a cry for help because people have a suspicion a nail gun doesn't have the umph to finish the job. What you'll be left with is a 2-3 inch nail sticking out of your skull, some blood, and you blinking away in disbelief.
Oh yea, PS, it will hurt when we use a pair of pliers to pull out the nail. I've been tempted to pry out using a hammer, but you know, win some and lose some.