Several years ago someone tried to climb into our apartment window in Amsterdam (with another guy waiting with a motorbike as getaway vehicle on the street). He was standing on the windowsill and tried to break open the window (it was open but we had one of those locks that limits how far the window opens, so he didn't fit through the gap). They fled once we noticed them.

When we tried to report that incident to the police their first question was: Did they manage to get into the apartment? When we said no they told us there's nothing that they can do as the people who tried to break into our apartment weren't doing anything illegal.