Lol I'm a tangent man myself. My friends are of a similar mindset: rather than think of what you want to say and then wait for your turn to speak, you just let the conversation carry you. And unless it is something specific (such as a personal life issue)we typically have the two pint rule in effect: You can only go back to a topic if it was less than 2 pints ago, otherwise you gotta wait until to convo goes full circle again. (Then again, at 4 in the morning you'd be luck if you can remember what you were talking about two pints ago )