Working as a lawyer in London’s boozy insurance district for around 10 years, Rob Fink was used to wooing clients over a pint. But after having a baby and going on a "once in a decade binge" that "we don’t talk about, it was that bad", he decided to take a break from alcohol.

He found that he quickly got bored of the non-alcoholic options. It was either fruit juice, sugary soft drinks or not going out at all.