Thats why you should always do a bit of research before donating money to a charity, For example about 6-8 months back one of the big charity organisations here in dublin, Renovated there offices with the money people give for people who really need it, Just so they could work in a nicer/better enviroment, And thats not all they also went out bought a painting for the wall for 60,000euro

And it would probably be still hanging on the wall only the press heard about it, And they sold it under public pressure

So it happens everywhere and its storys like these that do make people think twice about donating
I think the best ones though are the goverment funded ones, We have one here(The Irish Red Cross). Which means every penny you donate goes straight to charity as all the admin costs the goverment pays for, And they can also keep an eye on where the money is really going.