"You know you're reading a good book when_________"

Borders Books posted this line on their facebook page and asked us to finish the sentence.  I could think of several endings!  Here are a few that came right to my mind.  Any others you would add?

• You hope for red lights so you can read the book during the stoplight.
• You read the book in line at the grocery store.
• All of a sudden it's 3 in the morning.
• You want to call in sick from work just so you can keep reading (not that I would do this because I'm an honest person, but the thought has crossed my mind!)
• You cry (or sob) or laugh out loud when you are reading.
• It's 6pm on a Saturday and you're still in your pajamas reading.