In Sickness and in Health - Season 6 Episode 1 -

A year later and Alf is still living under the same roof as - and bickering with - Mrs Hollingbery,particularly over her scrounging friend Michael. Alf really loses it when the alarm on a car parked outside his house goes off and decides to teach the driver a lesson,though of course it rebounds on him and his efforts to get revenge on the workmen digging a hole outside the house are equally as ineffectual.