Totally agree.
It would really help if the security was standardised worldwide.
Why is it i can carry two bags(one backpack and one laptop) from SIN-LHR but only one bag in the opposite direction.
Why is it at LHR you leave the laptop in its bag for security but SIN you have to remove it.
Why at Delhi we were waved through security with two 1 litre bottles of water clearly on show.
In general these checks are just to make the public feel at ease, but the truth is it frustrates the hell out of us.
As for being polite ,well does the BAA realise after a 12 hr flight exactly how you feel to be confronted with attitude.Surely these guys have to pass a customer service course-truth is their bosses probably havent!!