Last one to post in this thread wins!

The problem is that when one person starts screwing the pooch, someone else is forced to pick up the slack. I realize that even at 60 years old, my work ethic is much different from what most younger people have. I find myself routinely outworking 20 year olds, and that is not meant as a boast, it is far too often reality. My boss was on vacation this past week and it was obvious that the new guy was taking full advantage of the situation. I don't want to be a complainer, but I am extremely tired of finding that I have to do far more work just to ensure that everything gets done in a timely manner.
Maybe my expectations are just too high, but I will not continue to accept the childish behavior that he has been exhibiting for the last few weeks.
My advice still stands. I have never left a job due to a fellow employee. Been fired twice. I blame the employer. If you are in the position to retire, that is great.