which game were you playing?
was waiting for that to get asked

but then i thought. if i had one bank account and one credit card no way this would happen.
tldr: the ms game
That means the bank paid even though you did not have the money in the account. It could have been worse if they decided not to pay, in which case you would also have a declined payment fee and possibly a late fee from the credit card.
yea and considering how much it was kind of glad. +im not sure amex would have been thrilled with the declined payment (although it was on a very established account) also glad i had mint send me an alert or it may have taken me a couple days to notice to replace the funds.