In Australia, they play opera music to get rid of customers in a Sydney McDonald's.
In Spain, they're hoping for the opposite effect on shoppers. The annual Shopping Night Barcelona is an opportunity to shop till you drop - or 1am if your feet and wallet can take it. To add to temptation, this year's spending extravaganza gets an operatic gloss.
Under the slogan Viva Verdi! Es lebe Wagner! Barcelona's central shopping area has been divided into composer-themed zones. Shoppers will be treated to a Valkyrie horseback parade, a big-screen montage of Verdi and Wagner choruses, and even a spot of live opera.
McDonald's will not be joining in.