You know why you do it, Crunch. Somebody has to make sure those 20sumthins learn which end is up and who better for them to learn from? And the truth of that statement is embedded in the fiber of your being (as well as the scarring of your liver) to the point that you have humbly accepted the responsibility of the task, no matter what the cost. It's so giving, so altruistic, such a selfless act that I'm sure most of the uninitiated can't even begin to comprehend the depth of your generosity.
You set the bar high, my friend, you really do.
And not just so I can't reach your booze.