Not a big deal... he made an offer for a card from a break about a minute after I listed the card on eBay. I accepted and he said he'd pay "tomorrow". I told him I'd end the listing as soon as he paid. When "tomorrow" rolled around, he (again) said he'd pay "tomorrow". The card is now less than 24 hours from ending on eBay and I never got another response from him.
With no prior history and only a couple of posts here, he's not someone I'd sell to.
Cards fans are ALL untrustworthy!