I gave a version of my recent CMU talk to the people at PPS; Noam, Jeff Sarnat, Kaustuv, Brigitte were all there; it was a veritable Frank-student reunion (plus Jeff, I guess). Got dinner with people afterwards somewhere in Marais, and we walked around the Seine after that.
And then, just as I was getting ready to enjoy heading home, I noticed that I seem to be stuck in Europe for a couple of days because of this volcano in Iceland. I was reading google news and thinking "man! sucks to be those people in northwestern Europe!" for like a solid minute before I realized I quite possibly was those people in northwestern Europe. And indeed, my flight has been cancelled with no clear indication of when I am going to get a flight again. I'm not stressing out too much yet, since I think I'll be able to find some way to stay for another couple of days; either extend the hotel stay, find another hotel, or crash at someone's place.