If you flat out had no money I believe the check would bounce. At least I don't remember ever hearing of the automatic loan scheme until I moved to Seattle and merged into my wife's credit union. If your CU has an only-account type feature you should check your statement to make sure money that moves out of savings is to cover checks or debit transactions that would have come out of the checking account.

Srsly? When I had the Only Account it was in Oregon, then I moved to Seattle and couldn't find a bank with that feature. Even US Bank, where I had the account in Portland, didn't have it in Seattle. The clerk gave me a kindergarten explanation of how it's not one company, it's more like a family with lots of cousins all over. I LOL'd mentally because I knew it for a fact was and is one company (I had even traded their stock in the past, symbol USB). But anyway apparently their accounts and features varied by state and Washington state didn't offer thar type of account. I will have to look around again now, thanks!