In article , David Walters
writes
If the gates are open you need to wait for them to say enter. If
you swipe to quickly (which I assume means the communication between
the barrier and your card hasn't finished) then you get a seek
assitance together with some loud beeping.

Bt what it you don't enter via a gate, but use one of the devices at the
ex carnet-verifier sites (like Farringdon station)?
--
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window a bit, type a bit, stare out of the window a bit. Networked computers
make these two activities converge, because now the thing you type on and the
window you stare out of are the same thing" - Douglas Adams 28/1/99.