Unspoken rules. Part 1

Here are my unspoken rules. What are yours?

• Don't go to someone's place without calling first
• If you take a rain check it's your responsibility to suggest new times.
• Never go to a friends' empty handed. Even fruits are better than nothing.
• Don't plug an excuse in an apology where you messed up.
• Don't leave your shopping cart in the middle of the aisle. Rude!
• Don't propose at someone else's big event.
• Don't bring up your great news when a friend calls to vent/ is crying.