The eternal war between measurement systems! Scientists who use the elegant, logical SI units (meters, kilograms, seconds) are shown absolutely LOSING IT when confronted with imperial units (feet, pounds, whatever random object the British were measuring with that day).
This is basically every international research collaboration ever. Americans show up with their inches and gallons while the rest of the scientific world screams internally. The rage is REAL - converting between systems has literally crashed spacecraft into planets! NASA lost a $125 million Mars orbiter because one team used metric and another used imperial. Talk about an expensive mistake!