Giving to charities, do you do it?

Actually reading my comment I look like an emotional retard. I basically hate been hounded by charities, something they increasingly do. I'd quite like to know exactly where the money is being spent and then I can give at my discretion. Those happy, mental hippy types that attack you when you're at your most vunerable on the street or come rattling a bucket in your face in the pub I can do without.