I go shopping in various Migros stores in Zurich (Limmatplatz, City, Wengihof, Brunau). Time and again I notice that the sales staff wear masks up to at most under their noses. In the Limmatplatz store, a sales assistant even served a lady with her mask completely pulled down, the customer had also pulled her mask down completely and even walked around the counter a bit, so that the two of them were not even a metre apart and had a lively conversation. Sory, that's not how it works.