Bills, bills, bills... And all of them are the wrong kind! We mainly seem to receive the type of bills that needs to be paid and not the ones that can be spend (or ads to ones life on a financial level). The disconnect in the term "Bills" might represent good times and laughter for one and headache and disaster for the other.
The title stems from the fact that this is how we feel on ground level.
P.S. The background of the painting states: "We want them bills which ad not those that subtract!"