1. They're annoying.

2. They're really annoying.

3. I'm referring, of course, to "25 Random Things About Me" -- those self-cataloguing Facebook notes that everyone is clogging up my News Feed with.

4. If you've been mystified to see yourself tagged in one of these notes, then you know the rules.

5. "Once you’ve been tagged, you are supposed to write a note with 25 random things, facts, habits or goals about you. At the end, choose 25 people to be tagged. You have to tag the person who tagged you."

6. They're spreading virally, a cross between chain letters and HPV.

7. At least a dozen, probably more, have slid down my News Feed in recent days.

8. They recall earlier Facebook irritants like the "If 100,000 People Join This Group, Then _____" groups, which promised payoffs like "...My Girlfriend Will Have A Threesome" and "...My Wife Will Let Me Name Our Child Spiderpig" and "I'll Eat Every McDonald's Value Meal #1-12."

9. None of those things ever happened.

10. "25 Things" is uniquely pesty, combining navel-gazing with obligation.