Had my existing client who has auto insurance with my agency call me...

Had my existing client who has auto insurance with my agency call me today from a dealership. He was with his brother-in-law who was buying a car for the first time, and his brother-in-law needed an auto policy. As I was about to finalize the sale, my existing client asked if he could put his brother-in-law on his policy just for the day, and to be clear, he wasn't asking to add the car his brother-in-law was about to buy, but rathe