Anyone ever flown from Coventry airport? It's like a little pretend airport that's been made out of site cabins (the exact same sort Ihave meeting in on building sites) which have all been stuck together like lego.
Last time I was there, there were two doors in the same wall which had bits of A4 paper blu-taked onto them. One said "Gates 1 & 2" The other said "Gates 3 & 4". Didn't matter which one you went out, they came out into the open air about 10 foot from each other.
Also, even if you've been through security, they'll let you back outside for a ciggy.