It's not like they're complaining that their Slurpee is 99% ice or something, but if the cocktail calls for "shot of vodka, shot of vermouth, shot of gin, shot of Campari, three shots of juice, squirt of lemon" and ends up being a thimbleful of booze, that's a problem.
Deluge from the wounds
Empty jars of sleeping pills
On the dresser in my room
My wet brain neighbor cranes
His neck in time to see
The white lights a train
Bearing down on me