Poirot I firmly think it is socially unacceptable to comment after some one breaks wind.
So will refrain.
I am however left handed should I cut it off?

Poirot,

I very seldom make disparaging remarks unless provoked, and while I don't claim to be innocent, I very seldom throw the first stone. Similarly others should not get so huffy when I reply in kind.

"Yeah, you're just like all the rest of us around here, full of little obsessions and vanities, except some of us realise it." - Really, I have yet to see anyone admit their own weaknesses.