Maybe Hall pleaded guilty because he knew he was?
I totally agree that now DLT has been proved innocent that the state should pay some of his defence costs. I believe he had to sell his house to cover his legal fees.
As has been said before the CPS are damned if they do and damned if they don't in terms of taking a case to court.
The comments re standards at the time are interesting. I believe that a rape charge should be brought if the evidence is there and similarly in the case of sexually abusing children. However, I don't believe that bringing a charge for a celeb goosing a female is in the public interest as this behaviour, although unacceptable now, was par for the course at the time.
The unnamed Scottish band (and lets be honest, most people who watched TOTP at the time know who they are) probably had lots of opportunities to abuse under age fans. Whether thay took those opportunities is a matter for conjecture but I'm pretty sure Gary Glitter's behaviour towards children didn't only emerge later in life.
How people interact in the workplace is a bit of a minefield as these days you have different personal standards. Touching anyone I would say is an absolute no no. At a former employer I had a male MD and a female sales manager who were both very touchy-feely in their approach to other staff, often putting an arm around your shoulder as they talked to you. Even as a straight single bloke I felt uncomfortable in the female sales reps approach. She was often flirtatious in an attempt to get her way which I thought was out of order and she couldn't understand why her charms didn't work on me.
Humour on the other hand is a bit harder to put definite rules in place for as peoples sense of humour varies greatly. At the same employer as above one of the secretaries, in her 50s, had worked on military bases most of her life and had a sense of humour that was filthier than mine (and that takes some doing) while one of the other secretaries was almost Victorian in her prudishness. I think if you don't know the person you are making a remark to/telling a joke to well enough to know what the sense of humour is like then you should just keep witty remarks to yourself to avoid offence.