A guy asks a barman how much a coke is.
The barman says it’s $5 but asks for $10.
So the guy’s confused and asks why,
to which the barman answers: “$5 for the coke, $5 for the service.”
The guy pays up but the barman gives him $5 back.
So the guy’s confused and asks why,
…
..
.
to which the barman answers: “Yeah we’re out of coke.”
