Brad is deeply absorbed in his maths when I walk up to him. He comes to the beach to sit with his dog, Archie every weekend. “It’s usually Sunday, good for a hangover. I normally party on a Saturday evening, you know, I study finance.” – he explains. Meanwhile Archie gets around to organise his own things: he steals a little boy’s toy and has a good run three people chasing him. Afterwards he digs by Brad’s feet and treats himself to a small heap of semi-wet sand.