yes such shameless crooks!They deserve no sympathy really and are brilliant actors..no glycerin! My husband now enjoys scaring them off by simply demanding their identification in his rough "shurtha"inspired voice..lol. Like this one guy who came by our flat claiming to be from such and such charity..my husband straight off demanded his id and said he was also going to take his photo. The guy pretended then to move aside to make a phone call and sped off like the wind! Seriously he was one fast runner...an athlete for sure!