This is why you always get things in writing! John Troxel, who designs sets for concerts, filed a lawsuit against Chris Brown on Christmas Eve. He says he was paid for some of his design work, but "extra work was required and requested."
Troxtel alleges that an oral agreement was reached but when it came to time to collect, the touring company refused. It's not like this guy is some chump either; he's done sets for Snoop, Michael Jackson, and Eminem.
Troxtel is suing for breach of contract and unjust enrichment and is seeking damages in excess of $1,000,000. I hope this guys gets his cash, but it is his fault for not signing papers.