MAN WALKS DOWN THE STREET TOWARDS A STREET CORNER. HE STOPS NEAR THE CURB RIGHT ON TOP OF A CIRCULAR DRAIN COVER. AT THAT MOMENT THE STAR TREK TRANSPORTER SOUND AND EFFECTS START AND HE FINDS HIMSELF IN A ROOM WITH SEVERAL SEXY SEMI-CLAD LADIES.
HE IS BECKONED OVER AND AS HE IS ABOUT TO MOVE THE SOUND AND EFFECTS START AGAIN FOLLOWED BY A BIG SPLASH.
CUT BACK TO STREET AS THE DRAIN COVER IS PUSHED BACK AND THE MAN CLIMBS OUT COVERED IN EFFLUENT.
END
Saw this one as random people standing in the drain cover and the moment something good happens on the 'other side', they get dropped into the drain. Bit like life really.
Not really a gag but the opportunity to see someone dunked and maybe an attractive female or two. 
Feel free to add your own (better) variations.
