Yo dawg, I see you like lockin, so I put some lockin in your lockin so you can be locked in while you're locked in. Seriously, though - collaborate on document

Yo dawg, I see you like lockin, so I put some lockin in your lockin so you can be locked in while you're locked in. Seriously, though - collaborate on documents via Facebook? I don't even load Facebook at work. It has no work value. It's like if you added Flash games to Outlook. It just doesn't fit. I hope this doesn't catch on. I don't want somebody to say "I shared this crucial document with you via Facebook."