The eternal academic caste system on full display! Physicists looking down on engineers with that unmistakable "I derive the equations, you just use them" expression. Pure theoretical superiority in human form. The hierarchy is real - physicists discover the laws of nature, engineers merely apply them, and Juan... well, Juan's just trying to pass Intro to Mechanics. Next time your engineer friend says "close enough," just flash this look and watch them dissolve into practical insignificance.