Um...

I don't know why, but the thought went through my head not 5 minutes ago that a co-worker was going to be sick and wouldn't be in work tonight. He would email another co-worker saying "I'm letting you know just in case the boss isn't in."

Just now, my co-worker said to me "I just got an email from M. He's got the flu. He emailed me in case the boss wasn't working."

What the hell is that???