Imagine that at work, you hear someone make an insensitive comment about another co-worker's religious beliefs. How should you react?

Explanation:

First of all i will tell the person to come to me after work  so that i will not embarrass him in front of our co-workers.then after work when he comes to me i will talk to him about how its unfair to make such a comment for someone   religious belief cause just because the persons belief is different from yours that doesn't you should do something like that. he entitled to his own and your entitled to yours .so as conclusion after that i will tell him to not do it  again. and apologize to whoever he made a rude comment about his religious beliefs .

hope this helps.  

if i were at work and heard another co-worker making insensitive comments about another co-worker beliefs, i would maturely address the issue if it were to continue by simply saying something  such as, that isn't a very nice thing to say, and it looks bad on the company. if the issue continues, i would bring it to my boss, or managers attention to be handled.