Ok ok XD
Golden rule! Fun first, rules second. The main essence of common sense I supose
As long as you're careful and fair. Rules aren't there to keep people from having fun they're to provide a shared level playing field to help keep things fair for everyone (or as fair as possible). A rule should be properly considered in this context before breaking it. Plus fun is subjective, not everyone at the table may consider breaking a rule for another player fun when they've spent the time and effort to play by the rules themselves...