valve

This being Manchester United, the pressure valve has only been released a small amount.

Also in May, thousands of residents in Devon were told to drink bottled water after their supply was contaminated with the cryptosporidium parasite - possibly as a result of a faulty valve on private land.

That could be down to the fact the state views online nationalism as a useful safety valve to “dissipate dissent in a way that does not undermine its authority”, particularly during its current economic troubles, where “society really needs an outlet to express frustration”, says Dr Luqiu.

“Right now, Europe has the Mediterranean Sea blocked, which means that the Atlantic route, which is more dangerous and lethal, has become the escape valve.”

Her younger brother Brendan, a camera operator, has even taught her a technique for shaking off stress, which she calls "the foofer valve".