Help! I'm stuck in a Fluther loop and I can't get out?

I sat down to get caught up on the morning’s activity. Started looking at “Activity for You”, answered a few questions, got a Comment or two to respond to, answered a few new questions…..More activity, more comments, more questions; it’s now two hours later and I’ve got to get off and get to the library before it closes! How do you decide when a Fluther-session has gone on long enough? This question is only semi-tongue in cheek (and hopefully, not daloon’s!)