A chemist in Sweden has decided to channel his anger at car drivers asking for spare change into entertainment. Those needing notes changed have to sing a song first.

Chemist Rene Jenni said he isn’t being rude to the numerous drivers coming into his pharmacy not for the purpose of buying anything, Ananova reports. He just wants something in return for doing them a favour, the chemist says.

His main reason for doing so was to make the annoying visitors go away because most of them felt too embarrassed to carry out the request.

Yet there are some who are no less imaginative than Jenni himself – they do start singing! One driver must have found it a pleasure, as they sang an entire aria.