It is not right to generalise & say that all the guards at a particular depot never do their job. So by saying that they do causes offence to the Guards that do the job properly.
You also have to take into account that from Rugby southwards the trains are generally quite busy, just because you don't see the guard in your part of the train does not mean he has not been checking tickets, he may well have got held up dealing with a customer etc.
I apologise if I caused you offence.
I must be unfortunate and always get the guards who don't leave the cabs. However even one of LM directors admitted that they were aware of a problem - they get complains about the invisibility of onboard staff south of Northampton and were getting local managers to get into the case
Straw poll - currently finishing a journey that requires 2 changes. It has a minimum of 3 different guards, can have 6 sometimes. Todays journey has 5. First guard - Crewe guard. Full check and visible. Second - Crewe, was conducting a check by the time I left the train. Third - Bletchley/Northampton. Not visible, no check, sat in back cab all the way. Fourth - Bletchley/Northampton, no check not visible. Will report on the fifth, I have not yet completed my journey.
I always travel off-peak, and I make this journey every fortnight, sometimes every 4 days. And its always the same. Always. Admittedly there could always be a safety issue which prevents them from leaving the cab, but overcrowding isn't one of them on the journeys I make. Besides - even the Crewe guards will make the effort when packed, and they always are on Sundays!
So - sorry for moaning and comparing the depots, but its inevitable while does a much bette job than the other on the whole.