I feel like I need to SCREAM somewhere....I AM SO FRUSTRATED!!!!!

One of my cousins contacted me regarding my doing genealogical research on her behalf. I sent her a contract outlining all the terms, fees, etc., including the fact that a retainer is required to be sent with the contract. (She knows this is my home-based business.)
I thought she had read that contract COMPLETELY from top to bottom BEFORE signing it and mailing it back to me with the retainer.
What does she say to me a few moments ago? QUOTE: "I ASSUMED that (retainer price) was the TOTAL PRICE and don't copies only cost a dime apiece?!?!
WHAT THE FLYING F**K?!?!?!
That tells me that AFTER ALL THE WORK TO MAKE SURE THE CONTRACT COVERS EVERYTHING, SHE DIDN'T READ A DAMN THING!!!!
F**K!!!! F**K!!! F**K!!!! DAMMIT!!!!
I HATE IT WHEN IDIOTS AND A$$HOLES DO THAT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
F**KING BLOODY H3LL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!