i have a friend who's been forced to sign on because he just can't get a job (and he's quite old, too, so finds it difficult to pick up new stuff) - he already felt humiliated by having to ask for help, and the first advisor he had spoke to him really horribly, insinuating that he was sponging (his words), makign out that he hadn't done anything to look for work, making out that he just wanted to get as much moeny out of the state as possible.
he came out of that experience thinking/believing that the Jobcentre hated claimants, thought they were "scum" etc.
he got so upset about it, that he didn't want to go back the next time, and he didn't want to sign on, so he was willing to have to sell his house in order to pay his bills, because he had no means of getting any income.
thankfully, my experience managed to persuade him to stick with it, and the next lady he saw was really kind, helpful and sympathetic.
He still hates it when he goes to who he calls "the old battleaxe", becaus eshe kept telling him he had to go for jobs in a meat packing factory (he's vegetarian), a delivery job (where he had to use his own transport - his car was written off before he started signing), and other jobs that were unsuitable for him. and she wouldn't listen to him say why he couldn't go for them, she would say "you have to apply for this or we'll stop your benefit"
So, one good one, one bad one - both in the same office.