Help finding a specific episode my grandfather was in

Hi all,

My grandfather passed away recently and was an actor who appeared in "bit parts" on several tv shows and movies, especially during the 80's and 90's.

One of his roles was in an episode of Neighbours, and I would like to see if I can find that episode... however I have no idea what the episode number was!

All i can remember from childhood was that the scene involved a man on a bridge, contemplating an upcoming big decision (very possibly his wedding), when a "homeless old man" approached him (my grandfather) and - thinking he is about to commit suicide - asks if he can have the man's watch before he jumps! Something along the lines of "That's a nice watch. Can I have it? If you're going to...". As I recall, the scene ends with him being shooed away and leaving in disgust that he didn't get the watch. My grandfather is possibly wearing - I THINK - a long brown coat.

It's been a VERY long time and I have no more information (my memory may even not be great at recalling the exact scene) but I am hoping maybe some lifelong Neighbours fans will recognize the scene and episode, or at least be able to help me narrow it down (i.e. weddings where the groom had second thoughts just prior and stood on a bridge).

Any help anyone can provide is welcome!