Rule 782

If a vending machine cannot spew out a snack/drink, then you have to shake it.

Guy: *Pays for a snack in the vending machine*
Snack: *gets stuck*
Guy: “RULE 782! *shakes machine*”
Alarm: *goes off*
Snack: *falls*
Guy: “atleast I got it. Thank god I followed rule 782!”