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A priest, a pastor, and a rabbit entered a clinic to donate blood
(sh.itjust.works)
Description
This is a community for sharing those cheesy “dad” jokes that invoke an eye roll or chuckle.
Rules
No, at one point a German physician suggested using zero, as it contains no antigens. But Karl Landsteiner, who proposed the eventual system that would come to be used around the world, suggested "O" for "ohne," meaning "without"--as in, without antigens.