For me, it is TGM (Targu Mures/Marosvasarhely) in Romania. I came in on a WizzAir A320, deplaned on roller stairs. We waited on the ramp in the "customs" line which was on the signed "international" side of the airport. Luggage was piled high atop a miniature truck and driven into the "terminal" where the bags were distributed across the floor.
As for security, the paved access from the parking area to the ramp (for moving equipment, cargo) is not fenced or anything, so there were armed border control people keeeping an eye the area.
All-in-all, a great airport experience!!!