I drove about 30 minutes to sell a guy some ammo. Everything was going well until I was pulling up to the meet and realized I forgot to bring the ammo!!! Doh! Luckily, he was meeting somebody else at the same time, so it wasn't a complete waste of time for him. And he was understanding of my brain fart.

Other than that, I have had nothing but smooth deals. I've never had a reason to leave negative feedback.