In from of a cinema. I was doing my BSc thesis involving a GPS receiver. The pointcloud on my pc had to be synchronized with where the receiver was, so it had to be tested outdoor. I and my teacher drove around some streets to see if my code worked, and everytime it didn't we had to stop in a parking lot (the one of a cinema). I couldn't code inside the car because the GPS receiver my laptop was connected to (via USB) didn't get a decent signal there, so I had to fix bugs sat on a brickwork in front of the cinema. My teacher kept looking at my monitor constantly, it was summer with 28°C, the sun hitting on me and my monitor, I couldn't see shit, the sweat of my hands flooding the keyboard. After a while I was saved by my laptop's battery which gave up. Thank you laptop <3