You are holding a birthday party. The guests have been generous with bringing food and gifts and now it's time for cake.
You are an evil socialist leaner
You slice the cake into equal portions and hand out a slice to each of the guests.
You are a conservative lifter
You give the cake to the richest guest (who happens also to be a mate from your private school), tell him to cut a quarter of the cake for you, keep as much as he likes for himself and sell any leftovers he doesn't want to the other guests.