I was prepared to dismiss the reading out loud of documents and the laughing to himself whilst just walking along the corridor as quite harmless. I thought maybe I was noticing things a bit more given my forced re-acclimatisation to the open-plan lifestyle.
However, today I spotted him sitting in a nearby cafeteria at lunch time, with:
i) his tie flicked back over his shoulder (fine - a great way to avoid tie-in-soup syndrome);
ii) his eyes closed (okay...);
iii) mouth slightly open (but not in anticipation of an insertion of lunch); and
iv) head tilted back (and I mean right back).
And this went on for about 5-10 minutes. He was absolutely motionless.
Prayer? Power-nap? Meditation? Water on the brain?
I have to say though, he is a very energetic and amiable bloke. Maybe this weird zoning out thingo is the key to his enthusiasm and post-lunch freshness?