Spain's love of sunflower seeds is wrecking its football stadiums

Snacking on sunflower seeds is Spain's "national vice", said The Times. To many, they are "as Spanish as paella".

Eating pipas, which requires snackers to "deftly crack open the shells with their teeth and spit them out", is "associated with conviviality" – as well as occupying the hands of "those of a nervioso, or anxious, disposition".

But among Spanish football fans, the passion is such that one club has been forced to ban the snack from its stadium. The discarded shells "clog drains and pipes"...