I was a witness to a verbal agreement once between my friend and his grandmother. She said she’d leave him her antique car if he helped her with errands for a year. He did, and when she passed, her will didn’t mention the car. Because I was willing to testify that I heard her promise, and he had proof of running errands for 12 months, he was able to make a claim against the estate, although it took almost six months and cost him about $1,000 in court fees.