Fireman's Pole Dancing

In an empty corner of a fire station, a helmeted firefighter drops down the brass pole and, instead of rushing off to a call, lingers to treat it like a strip-club prop: hugging it, sliding along it, flinging his arms wide and pulling exaggerated faces of rapture. After half a minute of wordless writhing he composes himself and hurries out, leaving the pole standing alone.

The fireman is played by Simon Greenall, credited on IMDb as Fireman in two 1998 episodes; he later voiced the Compare the Market meerkats. The wordless gag aired in the fifth episode of the first series.