"Wait!  We don't want to check if Gus can buy spaghetti.  Gus needs to try taking--let's say 1000G--from wherever G goes where people buy things, and use that to buy spaghetti, so it just goes around in a circle, is the idea--"

"Wait!  We don't want to check if Gus can buy spaghetti.  Gus needs to try taking 250G or whatever amount, from wherever G goes where people buy things, and use that to buy spaghetti, so it just goes around in a circle, is the idea--"