Being a grass is not a nice thing to be. leave them alone, they aren't hurting you.
EDIT for the people who think it's fine to tell tales. You're living in la la land, NO it's not your taxes - period. Have a look at a benefit claimants bank statement and SEE where the money is transferred from before you spout bull. It's paid from their own national insurance account, it's their own money and it's a very small part of their account as national insurances accounts held by the treasury are huge. This is because a bond is set up at registration of a person's birth and it's all to do with currencies no longer being backed by gold and instead being backed by people.
A single person over 25 gets 71 quid a week to feed, clothe themselves, pay water, gas, electricity, tv license etc etc. How could could that person survive without committing benefit fraud ? I'd bet you couldn't.
Meanwhile politicians steal 20 years of benefits payments in one year of expense fraud and banks rob the country senseless.
Get your priorities right people, go after the real criminals, not some struggling family whose had their livelihood stolen by economic incompetence and are just trying to make a few extra bucks to survive.
I repeat being a grass is not a nice thing and I pity you if that's what you aspire to
EDIT FOR JAMES 16 trillion in debt - you must be American. NONE of your taxes goes to welfare, absolutely zero. Over 99% of income taxes in the US go straight to the fed to pay the interst of that debt. Public expenditure is funded by more borrowing from companies/banks which are legally allowed to just create money. You should get your facts straight before applying to be a nazi collaborator.