This seems easy to outsmart or confuse. What if I go with someone that doesn't have an Amazon Go account grabs some stuff for me and throw it to me? Or how ab

This seems easy to outsmart or confuse. What if I go with someone that doesn't have an Amazon Go account grabs some stuff for me and throw it to me? Or how about I go with someone that has an Amazon Go account too and we divide in two, he goes for the milks I go for the cereals. We meet just before the "check-out" and he gives me my milk I give him his cereal. I'd need to know more about the technical stuff to know how it could be confused, or to know if it's even possible to.