Home Cameras/Lenses Leica Beijing: Kartskating, new craze for waiters Beijing: Kartskating, new craze for waiters By Mike Evans - 10 December 2013 0 Two off-duty fúwù yuán turn their table-waiting talents to kartskating, obviously a new craze in Sanlitun, the Soho of Beijing. Note the omnipresent smartphone just in case an ambulance has to be summoned.