Batman's shark attack ...need...shark...repellant...Robin...
 

Velocitoy -

I assume that you were referring to the helicoptor/rope ladder/shark attack scene where Adam West was fending off the fake shark that was attached to his leg? That was probably one of the funniest scenes in a movie that I have seen that was probably not originally intended to be funny! The hollow thumping sound made when Adam West was whacking the fake shark on the head was a classic! It looked like the actors could barely keep a straight face through it all. And to have it end with the ultimate Hollywood effect - the shark exploding as it hits the water after being sprayed with the "Bat Shark Repellant". Warning - the humor of this scene increases with each alcoholic beverage consumed.