I'm online for two reasons:
1) I'm jetlagged, and there realistically is no real-life place where a bunch of people you really like keep you company at 2:55 am local time.
2) Although I'm technically on vacation, I have to fill in for a colleague on short notice. (My agreement to fill in was the only reason I was allowed to fly to Germany at all.) That means getting some preparatory work done before America wakes up on Tuesday. There are some gaps in the workflow (*), when the computer churns away on a simulation. These gaps are perfect for A2K-ing.
(*) Yes, I know that "gaps" in a "flow" is a horrible mix of metaphors. I am appropriately embarrassed, but too tired to do anything about it.