Afterwards I collected my case, which he had kindly taken to work so I didn't have to trundle it around Berlin all morning, then headed back out to the airport.
(Is Schönefeld the only airport where you can buy a selection of vibrating cock rings from a dispenser in the ladies' loos? I was going to take a photo but people kept coming in and I was too embarrassed.)
The flight was fine, my bike was where I'd parked it, and I was home before 10pm. I seem to have left part of my heart in Berlin, however.