'Aggressive tactics' is not far from the truth. Although I am all for supporting what the charity AAs do, a bona-fide collector for my local AA knocked on my front door a few months ago, and I gladly reached for my wallet to give him some notes.
Oh no, he says, he wants my credit card and shoves a form at me wanting to sign up to a monthly direct debit for 20 quid minimum. When I politely decline, I get a 'well I hope you never have to call them sir' and the smile goes as he heads off to the next house