S22·E54 Episode 1780 (Thu 8th July 1993)

Noticing how drained she looks, Frank persuades Zoe to take a break from her rounds and rest, even though she only did so for two hours. Jack and Sarah finally get to the bottom of Robert's distress when he tells them that everybody at school is mocking him and calling him thick. Alan is escorted to Skipdale Police Station when the same policewoman who shooed him from a doorway catches him trying to get into his car after losing his keys, and instantly thinks the worst.