The German expression Fisimatenten machen, meaning to make things unnecessarily difficult, is a mingling of the French visiter ma tante (visit my aunt).
It originates in the difficulty of imposing a curfew on occupied France during the Second World War.
Visiter ma tante was the general excuse used by people arrested on the streets at night by French soldiers.
de Boinod, A.J. (2007) Toujours Tingo. London: Penguin Books. p.46.