The security and immigration staff (specially the Arabs) at Dubai Airport are extremely impolite and arrogant. I understand that they have to run their security checks, but they can be polite in the way they talk. It took me 2.5 hours to get through the "Eye Scanning", and while we were standing in the queue, the security staff even shouted at some people for not standing properly in the line (is this a military parade going on?)
I would request and recommend every one to avoid Dubai airport at all costs.
The complaint has been investigated and resolved to the customer’s satisfaction.