Two heroic nightclub managers commandeered a dinghy to pull a woman drowning in the Thames to safety.
Mr Byford said the pair, who work at the Viper Rooms, slowly approached her.
But when the police arrived, she jumped in.
The trained lifeguard and Mr Luis threw ropes to her but she did not grab them, so they got into a dinghy they spotted sitting in a nearby boathouse.
I was going to just tie a rope around my waist and jump in after her but when we saw the boat that seemed like a better idea.
The woman is now receiving hospital care following the rescue in the early hours of Sunday morning.