Hogging the middle lane is unacceptable, but I have to say I don't think I've ever seen anyone hogging the middle land whilst driving at under 70mph. Given that no-one is allowed to go over 70mph, they are therefore not blocking anybody.

[Breadmaster] Oh I have. How come there is space for me to go at 70mph in Lane 1 if he/she or it is going at 65mph in Lane 2? Because everyone else in Lane One has pulled ahead (at a legal speed) of the sluggish Lane Two-er, that's why. Exactly how much motorway driving do you do?

Well, not so much these days, admittedly. Perhaps there are more slow middle lane hoggers than there used to be!