Have you ever emptied a can of pop and filled it with an alcoholic beverage?

It is easier if you use a bottle of pop that is empty. You can screw the cap on and keep the precious stuff from spilling. I usually do this when I am operating. As a brain surgeon it would be unseemly of me to have a drink in my hand, but no one questions me when I sip from a bottle of diet Coke during a tricky procedure involving removing part of the brain. Oops! The damn scalpel slipped again.