If you allow him to do something which is wrong in your eyes, (but apparently correct/doesn't even matter in his eyes), then there is a very high chance he will suffer bad consequences.

If you disallow him to do something which is wrong in your eyes but correct in his eyes, then you will suddenly appear to be a girl who is so controlling and sometimes even, fierce.

So what should you do at this moment?!

Allowing your friends to continue that attitude which might ignite other's anger (maybe in the future) or disallowing them to continue and make them feel like you're real bossy and scared? I really don't know.

Sometimes being fierce/controlling to others so that they won't make huge mistakes that will be their loss in the future will make you look like a fierce woman and a very hard-to-get-close with woman.

If you just open one eye close one eye and accept him for what he has done, and you KNOW there is a huge possibility that others can't tolerate his attitude in the future, you are somehow.......... doing something wrong, isn't it?

:(

I really don't know what to do.