It was so cold, Lord Kelvin checked his math.
Lord Kelvin, Daniel Gabriel Fahrenheit and Anders Celsius walk into a bar and...
"Hey, barkeep, this beer is too warm!"
"No it's not, it's too cold!"
"Forget the beer. What I wanna know, Danny, is how'd ya pick thirty-two and two hundred twelve? Huh? Like, a round number wasn't good enough for ya?"
"Anders, I based my scale on three fixed points: average human body temperature, and the distinctive freezing temperatures of pure water and brine, you shrimp-brain. The latter two are frigorific mixtures. They make splendid reference points!"
Kelvin and Celsius froze and stared at Fahrenheit, then blinked in unison. Suddenly all three of them turned to their publican and called out in a hearty chorus,
"Rankine, good sir! Three more IPAs and a mug of ice on the side! And keep that tap at the ready! We have some serious experimenting to do!"