I feel like this could so easily be either a running gag in a sitcom or a setup for Punk'd:
-PresumptuousCoworker enters room-
PC: Hi folks, I hate to interrupt your meeting, but I just wanted to make sure I touched base with everyone.
Room: [silent goggle-boggle]
PC: So, Sharon, you're going to need to leave a half hour early to pick my daughter up from daycare tomorrow. Rob, the keys will be by the back door so you can get into the shed where I keep the mower. I prefer the backyard mowed in diagonals, by the way. Stephen, I'm going to need you to pick up four trays of cookies from Subway, all double chocolate. Oh, and Mark, the party is probably going to run late and involve alcohol, so bring some rubber gloves so that you and Jessie can get all the toilets sparkling afterward! Ok, see you tomorrow!
Room: [stunned and confused silence] Who was that guy anyway, does he even work here?