I looked at the numbers and I thought, at first, 'No way! That'd kill you!' Then I dug out the calculator; assuming he slept as normal, during that time, on average, it was slightly less then one beer an hour. Thinking about it, I've worked with people who drank at a higher rate (although admittedly not for as long). So presumably it is within anatomical tolerances!

That said, I don't think a four-day bender is a good idea! I imagine his liver no longer wants to be his friend...