On Sundays we open at noon. I do not open the doors at 11:37 because the rest of the staff is not there, the tills are not ready, and I do not have to open until 12:00.
Last Sunday, at about 11:37 a.m., I saw a young man yank on the door. He had a french press in his hand, which means he was probably after a new glass beaker to replace a broken one. He looked down at the posted hours and then walked away.
When I did open the doors at 11:56 a.m., he was sitting outside our doors with his french press. He asked the price of replacement beakers. I led him to the coffee supply section. After I told him the beaker price, he unloaded his little planned speech:
"Wow. Your replacement beakers are almost as much as a new french press. Yea, I already went and bought a new french press because you guys opened late. Thanks though."
As we parted ways I said "we open at 12:00 on Sundays" to remind him that we opened right on time.
So he found that we were closed, went somewhere else for 15 minutes to buy a new french press, then came back to wait outside the store so he could "punish" me by telling me he didn't need the thing he had needed because he went somewhere else and bought it AND it was cheaper AND we opened "late."