Alright, end of the story and from the feedbacks that I received I guess they are blaming me.. I hope people here are not insensitive and wishing they are open minded.. First of all, I'm not insisting to go inside the airport.. I just asked him if we could help my sister and if not then it's fine with me.. he doesn't need to tell me many times that I'm not welcome and I just need to stay outside 'coz I'm not an idiot.. well, one day he'll gonna get what he deserve and maybe someday someone might teach him a lesson he deserve.. KARMA!!! =)