New lodger Ambrose claims to be a hypnotist and proves it by mesmerising Rigsby into regressing to his childhood - and undressing - in front of Ruth. To make things up to Rigsby, Ambrose hypnotises him into adopting a smooth persona to woo Ruth but she is not impressed. After Ruth has pretended to be hypnotised and chased after Rigsby for a joke, he decides he will do the same to her but the pretence is unmasked when she sticks a hat-pin in his bottom.