Vince falls for Stacey, the aqua aerobics instructor at the pool where he works as a lifeguard. Stacey thinks Vince is a bit weird until she sees his medical notes. Meanwhile, Errol has his own problems. He agrees to take part in a swimathon in aid of sick kids even though he can't swim. Vince decides his flatmate needs to conquer his phobia of saying "no".
Vince wakes up surrounded by the debris of a night out. As his eyes focus, he spies a piece of pub décor he took home "for a laugh". Errol is reluctant to help him return it for fear of being caught handling stolen goods and is unconvinced by Vince's explanation that it's not stealing if you're drunk.