I had about 30 minutes left before meeting up with a friend, and my phone’s battery was down to a stressful 3%. Looking around the café, I noticed a power outlet along the wall. Relieved, I walked over and plugged in my charger.

A few moments later, a staff member walked over to my table.

"I'm sorry, but using the outlets here is prohibited," they said politely.

"I see," I replied. I was ready to unplug it right away, but I got a little curious about how things worked around there. "Is it written down somewhere that we can't use them?"

"No, not particularly," the staff member said.

"Is there a sign inside the store?" I asked.

"No."

"What about at the entrance?"

"No."

The staff member was looking a bit troubled now. "Basically, we just let customers know verbally whenever they try to use it."

I couldn't help but smile a little. "So, in other words, only the people who actually use it get warned, right?"

"That's how it is," they admitted.

"Look, I totally understand that it's prohibited," I said gently. "But if there are no signs, it's only natural for unaware customers to plug their phones in without knowing, don't you think?"

The staff member fell completely silent. A little while later, the store manager came over to my table. I didn't want to complain or make a scene; I genuinely just wanted to make a point about how they communicated their rules.

“I think it’s completely fine if using the outlets is against your policy—you just need to state it clearly,” I told the manager. “If it’s not written anywhere, how are we supposed to guess? And when you only warn the people who use it, it feels like you are singling people out or treating them differently.”

The manager thought about it for a moment, nodded, and said, “You’re absolutely right. You're spot on.”

A few days later, I happened to pass by that same café again. I looked at the glass door and noticed a small, neat notice posted right at the entrance. It read: “Please refrain from using the outlets.”

It was just one simple line, but that single line changed everything. It kept future customers from making an honest mistake and feeling embarrassed or upset about being called out.

The lesson here isn't that the rule itself was bad. The problem was expecting customers to guess a hidden rule before anyone even bothered to communicate it. It is never the stranger's fault for not knowing—the responsibility always lies on the side that failed to speak up in the first place.