Lending.

He told me he had lent my book out to 6 different people and that he has not got it back. So, I signed another "This one's yours fucker. Keep it to yourself!".

Later after he'd left: the bartender said "Bob, your next beer and shot are on Mac." I didn't want to appear ungrateful , but I was about to close my tab.

I had a decision to make. I knew these last drinks would be too much and I'd keep the tab open wide...

I would not be going to work in the morning.
And that was fine!