I drove a friend to an airport in Switzerland, got lost on my way home, and accidentally visited both France and Germany.

And if you're unpopular enough, they can also abuse arrest warrants for political persecution from another country. Case in point, captain Tommy Olsen from Norway, who Greek authorities accused of "human trafficking" for helping boat refugees.

They've deliberately made it very easy to request arrests across borders, so it isn't all rosy. One of the reasons it really sucks for everyone when an EU country starts slipping towards fascism.