There is also an issue with bike space. Many people park their bikes in the vestible at the ends of the carriages which on a 444 is a very tight space.
Bike spaces are clearly marked. They are strictly prohibited behind the drivers cab because the doors which secure the leading driving cab are linked to the emergency plungers in the cab and may open without warning and are an emergency exit for the driver.
And yes I will sling any cyclist out of there too, whether they like it or not.
Art.49 NRCoC.
Any Train Company may refuse to accept an item of luggage, an article, an animal or a cycle, even though it meets the requirements set out in Condition 47 and 48 and Appendix B, if, in the opinion of its staff:
(a) it may cause injury, inconvenience or a nuisance or it may cause damage to property;
(b) there is not enough room for it;
(c) the loading or unloading may cause delay to trains; or
(d) it is not carried or packaged in a suitable manner.
So in the case of putting it behind a cab, a & b apply, as for a vestibule, a,b & c apply.
Personally I'd like to see a complete ban between 0600 & 1000 and 1600 & 2000 for all cycles except folding ones. And a fare of £5 per single journey.