Prom Ise

A phrase sneaky assholes use to cheat themselves out of promises, however, they haven't read this and don't realise they must keep their 'Prom Ise'.

Person 1: I prom ise to do this thing as long as you do this other thing. *Person 2 does the other thing then asks for the first person to follow up on their side*Person 1: No.