<a href="https://en.wikipedia.org/wiki/en:Trier" class="extiw" title="w:en:Trier">Trier</a>, Germany. – Due to the coronavirus pandemic in spring 2020, for several weeks, quite a lot of Germans started hoarding essential food as well as toilet paper, resulting in temporary shortage in shops; this attracted some media attention. This issue apparently inspired the window display using coloured toilet paper rolls in this optician's shop.
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