Your immune system: the overenthusiastic bodyguard that will absolutely demolish an invading virus, then turn around and declare war on your pollen, gluten, or that one specific brand of laundry detergent. It's like having a security system that neutralizes burglars but also occasionally decides your furniture is suspicious and sets it on fire. "Thanks for saving me from that cold virus! Did you really need to make my eyes swell shut because I petted a cat, though?" The ultimate biological drama queen - heroically battling deadly pathogens one day, throwing a tantrum over peanut molecules the next. Evolution really said "let's make this defense system with exactly two settings: 'meh' and 'ABSOLUTE CHAOS.'"