Roads... I grew up in Texas but moved to Germany in my 20's. I went back for Christmas after a few months of flying on the Autobahns, and was really concerned that I'd slip up and catch a monster speeding ticket while visiting home and cruising on those long, straight, relatively empty rural highways.

That was a ridiculous worry, because there are enough random, unmarked road problems that I was nervous just doing the limit sometimes on roads like TX 36, the main highway between Central Texas and Abilene. Even I-35 between Waco and Austin seemed dodgy in spots. Things that would get marked "Straßenschaden" ("road damage") and have dropped speed limits in Germany were completely unmarked. This was in 2004, and the last time I was back (pre-Covid), it wasn't better.