I must confess its not the sort of thing that worries me, but I do like a pilot with a sense of humour!
Recall a rather hairy landing at Gatters on CX once. On the way down the plane was all over the shop (the pilot had warned it was going to be a bumpy descent), but the landing itself was a real greaser.
The pilot came on and said, "Welcome to Gatwick.....Good landing, wasn't it?!" Happy smiles all round.
As we trundled to the gate the pilot came on, "Ladies and gentlemen. It has just been pointed out to me in the strongest possible terms that the landing was performed by my FO Cap'n xxxxxx." In the background of the announcement was an ironic cheer and the sound of handclapping.
More smiles all round.