Very many, usually at Balian's expense. One in the 3rd installment:
Imad (the man who spared Balian at Kerak): Balian, my Frankish friend,I know you are an honourable man and that what brains you had were fried by the desert sun, but for once, think about the world from the perspective of a dishonourable man.
The Royal Gondorian Pirate Fleet. And it's flag. And then the dispute over the names of the ships, for example "The Salty Wench".