Rare as in Carpaccio & Steak Tartare, Blue rare, rare, medium rare or heaven forbid well done ?

Sending food back is worth an entire thread of its own. In addition to totally destroying service, it is human nature for a chef to subconsciously believe that they got it right the first time, and therefore err in the opposite direction. I.e. when a dish is returned as overcooked, send the replacement out almost raw…and cold in the center. Or the reverse.