I love driving in Germany. The only things I wish they'd explained to me before picking up a rental car: 1) The "priority road" system, indicated with diamond

I love driving in Germany. The only things I wish they'd explained to me before picking up a rental car: 1) The "priority road" system, indicated with diamond signs, for right of way on secondary roads. This isn't quite as weird for outsiders as the weird British Columbia flashing green lights thing (wtf), but still, almost caused an accident the first time I encountered it at night. 2) When traffic is stopped and you want to allow emergency vehicles, you make a gap between (California) lanes 1 and 2, i.e. where Californian motorcycles go; in the US (and everywhere else I've seen), emergency vehicle drive on the shoulder. Either makes sense, but knowing what's going to happen is good. I naturally pulled toward the right in the leftmost lane until I looked behind me and saw flashing lights coming up fast.