Me: You haven’t paid me in awhile, do you think you can write me a check today?
Client: No, I’ve run out of money.
Me: But last week you told me I could invoice you weekly.
Client: Yes, and you can. What’s your point?
Me: It’s been a few weeks. I’m working every day for you and keeping careful track of my hours and submitting an invoice at the end of every week, under the assumption I’ll get paid for my work.
Client: I said you could invoice me, I never said I could pay you.