Last time I made that interchange (Jubilee to Met Southbound) the
Jubilee line train sat for a while just before the station, obviously
held there purposely to make us miss the interchange,
Or the driver didn't want to have a SPAD, get sacked and cause a walkout!

then the
Metropolitan Line train closed its doors the moment we started to
cross, and we had to wait about 5 minutes for the next one.
If the driver didn't know you were there, or if he's running late whats
he to do, sit for as long as you want him to wait and hold up trains
behind, there's always a line to be drawn the doors have to close and
the train depart it will always annoy someone.



Also this is a voluntary system, if we're running late we don't have too
wait.

I can understand at peak times if there are trains every minute or so.
Otherwise it does nothing but infuriate passengers (who may next time
choose to take their cars).
Take the car, pay the congestion charge, the fuel tax, road tax,
maintenance etc etc etc, and have no where to park, it's your/their choice.