Whenever you're dealing with words from a language that's foreign to you, you have to be overly cautious.
I can't count the number of times I've made my family in Albania crack up with laughter or gasp in horror when I mispronounced a word. The same goes for my wife's family in Egypt. Did you know that a slightly harder "m" sound is the only thing that separates the words "bathroom" and "pigeon" in Arabic? Well, now you do.