Some cock i worked with last summer (loading a van - I hate undignified student jobs) explained to me how, if i got my girlfriend (of less than a month at that point) pregnant and got 5 kids out of her i could earn enough through hand outs that I wouldn't be required to work again, and would get a big free house. Considering the number of people at *un-named haulage company reminiscent of explosives* who had a similar life plan, the system clearly isn't doing its job.
I have nothing against benefits for those who are deserving - the sick (and the actually sick, not just the ones that new labour bribes to keep the unemployment figures down), carers, elderly.etc., and those genuinely seeking employment, but those who just want to sit around on their arses and do nothing shouldn't be entitled to a penny.