I would have asked the twat in a very loud voice...
"Which fucking animal do you think ham comes from you dumb shit???"

Then show him a youtube video on "how ham is made".

I had a similar experience once where a muslim *friend* (he just attached himself to people cos he had no friends) bought a large pack of "bolognaise" crisps when we were in france (after all, he couldn't read French). After he'd munched his way through half the pack I considerately pointed out to him the meat content of his salty snack. I think he prayed to Allah shortly afterwards.
( brown-wings Made with three kinds of butter, Fri 20 Feb 2009, 9:26, Reply)