• frustrated_phagocytosis@fedia.io
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    17 hours ago

    No one tells you that male rats and mice find certain substrates very erotic. Like a mesh floor, or warm plexiglas. They will rub, groom, and nibble until they ejaculate while you are habituating and testing them, with certain drugs increasing the frequency of these events (morphine for example). So every once in a while I go ‘I’m scrubbing rat cum off the mesh floor for money, again’.