I'm working in a little corner of the sky that includes the top edge of a cylinder of class D airspace that is monitored by a flight service specialist, a slice of class C terminal airspace, and the edge of an area of uncontrolled airspace with its own air-to-air frequency for the low-level local traffic. I checked in with the FSS and they handled me for a while and then decided that I should talk to the terminal controller, to coordinate my movements with inbound IFR traffic. I did so, and tried to monitor both frequencies for a while, but it was an overlapping cacophony of sound. Even turning down the volume for radio tuned to the second frequency, I wasn't sure I wouldn't miss calls on the primary, so I told them I was going to let them go.
When the work was finished there, my next job was in military airspace. Prior negotiation had secured us permission to work in the airspace, so all I had to do was call their controller for a clearance. But just as I was about to do so, we discovered a problem. Data that was supposed to be on board in our computers was not. The data is required to do the work. We have a satellite link on board, which can be used to communicate with company, but only via short text messages, not special format data files. This wasn't an unprecedented situation. I found a community with a cellphone tower and dropped to a suitable altitude to orbit the tower until we had good bars on a cellphone and could set it up as a hotspot to log the laptop into it. The laptop wasn't charging properly and the battery was low, but there should have been enough juice to grab the data. Then I hear cursing from the back of the plane. Windows has decided that this is the right time to download and install updates.
The town with the cellphone tower also has a little airport, with a little tiny terminal. I check runway length and procedures and put my wheels down. It's much easier to download data while on the ground. Also easier to visualize. I caught myself claiming we were "uploading" data, because it had to come up to get into the airplane.