I had a supervision session with my line manager where she reviews my work and performance. We couldn't find a room to use, so we decided to go outside, as it was sunny. My boss suggested sitting under a shady tree, so I got my picnic blanket out of the car. We thus had our session sitting on the picnic blanket with our shoes off.
It seemed perhaps a little surreal to be reviewing my performance sat on a picnic blanket, but it was a nice change. Perhaps it might seem a little overly familiar, though my line manager did come to the housewarming party in my apartment a while ago (and complied with my no-shoes rule).