It has nothing to do with people thinking less of us because we are cleaners and all to do with the fact that some people just dont realise they are taking the pee. I think we've all had them, i ended up leaving two houses because the people drove me mad. As people, i liked them, but i couldnt work for them in the end.
As for paying for breakages, i have insurance to cover damage to property if all hell breaks loose, but for the every day things which get broken in the course of my work, i'm afraid i am NOT in the habit of paying for it. I exercise as much care as i can, but accidents happen. I'd say a third of what i break is by accident, a third is due to the item being on its last legs before i touched it, and a third is due to the owners putting things in stupid places/not assembling the items properly.
If anyone asked me to pay, that would be the last time they saw me. At the end of the day, it is peoples choice to pay for help or do it themselves.