Batman on Milan Metro Boosts Passengers' Willingness to Give Up Seats

Researchers dressed as Batman on Milan's Metro observed nearly 140 rides to test whether the Caped Crusader influences seating behavior toward a pregnant woman; when Batman appeared, about 67% of passengers offered their seats versus 44% when he wasn't present, suggesting Batman can prime altruism. The piece also highlights the broader 'Batman Effect'—adopting a superhero persona can boost confidence and reduce stress—illustrating how identities can shape behavior.