The scarey thing to me is that so much of what goes on in immigration to either country is at the discretion of the admitting Immigration Officer. Get one in a foul mood or one that does not like the look of you and you get the third degree. I honestly wonder if they tell them to assume guilt and never smile.
-that happened to me when i came over to visit in december for three weeks. positively nasty officer at heathrows terminal 3. she grilled me about all the dates i had travelled in and out of the uk in 2003 (which was 3 times, but none overstaying my 6 months) not to mention any other travel i had done on my passport.
-& after that happened, i was questioned again when i entered on february 14th. only this time, the officer was a lot nicer and more sympathic. now i fear this happening each time i enter the UK.. (although next time will (hopefully) be with a visa
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)
As for myself . . .it's hard to look chipper and happy to be standing in line when you have just gone through a 8 to 9 hour flight. Ugh.
-when i was grilled in december by the officer, i had just gotten off an 8 hour+ flight, was 15 weeks pregnant at the time and had terrible morning sickness (w/ vomitting) for most of the flight.
i can only wish for a better experience next time i enter the UK
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