In article , K
writes
But why have the LEDs come on *at all* when you use the paper ticket?

They go red to tell you that you can't use an oyster at the moment
because the gate is already in use.

But I know the gate's in use - I'm standing in it!!!!

--
"It used to be that what a writer did was type a bit and then stare out of the
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.