Obsession with twngan

The other day, I was asked to tell a story. Never a storyteller, and with nothing in mind, I told the following story in Cantonese (English translation below).

從前，有條友，夠聽話，做特首。佢有勇氣，所以佢繼續留低。後來，佢腳痛，於是做左國家領導人。

Once upon a time, there was this docile guy who was the Chief Executive. He had courage, so he chose to continue to stay. Later, he had a leg ache. So he became one of the leaders of the country.

I know, nothing is funny if it has to be explained. But just in case you have no idea but still want to know what this means, I'm talking about this guy, and his famous quote when being asked whether he was going to step down, "it is easy to just leave, but it takes courage to stay," not too long before his resignation.