I showed up at 9:05 am on a Sunday morning. The signs says they open at 9 am on Sundays. Lights were out, door was locked. When one of the staff saw me looking in, he open the door, and told me that the coffee was still brewing and that they hadn't put out the baked goods and it would be another 10 minutes. I was treated like an annoyance instead of someone who wanted to be a customer. So instead, I walked to another bakery that sells awesome scones - and was open and friendly!
This might sound dickish, but I used to be a barista and opened a cafe at 7 am on Sundays, which meant I was there at 6:30 to make sure everything before it opened.