...when...
1. You spend, or have spent, more time than you'd like to admit reading about the history of this course and that course. Especially on nice days when you could be out playing.
2. You could conceivably be up until 5am reading articles, or have been up until 5am reading articles. More than once.
3. When the website is down, you call/ask others if the website is down.
I am guilty of all of the above.