He is obviously an early learner...

so.. you drank so much beer you can't remember drinking it and you blame your kid instead?

That boy can hold his liquor!

Somebody in your house (including yourself) clearly has an alcohol problem.

The boy did it.great job!

Seek help ... you don't remember drinking all your beer... Your 8 year old deserves better...

When you have eliminated the impossible, whatever remains, however improbable, must be the truth. – Sir Arthur Conan Doyle

Best solution then, do not have beer in the house. It is not a requirement and if your 8 year old is drinking it he probably is just copying what he sees adults do.

The kitchen sink drank all the beer.

Obviously you have a ghost that likes to party.