> I'll admit standing in line for my robot checkout while idle cashiers stare at me with forlorn sad eyes makes me uncomfortable What? I just assumed that eve

> I'll admit standing in line for my robot checkout while idle cashiers stare at me with forlorn sad eyes makes me uncomfortable What? I just assumed that everyone optimized for the minimization of time spent waiting in line. Personally, I'd never wait in line for self checkout if a cashier was idle!