My wife purchased a similar cleaning product from a door-to-door kid. They came in and cleaned a few spots on our carpet and what not. I think she paid like $45 for a liter concentrate. It works darn good I'd have to say, however we are alreaty out of it.
I hate having people come to my door selling things even if they are not crap. The point is if I wanted to buy any of their amazing products, I'd find them.
The one's that absolutely get under my skin are the magazine seller's. They are always some kid that has some sad story about how they are trying to turn their life around, or are working on their public speaking or whatever and need to get some more points to get a trip to cancun or camp or whatever by selling magazines.
Some of them are really smooth and try and trick you into buying them even after you tell them your not interested. I usually end up telling them that I am illiterate. One went as far as telling me that I should buy them to look at the pics!
I'm fine with legit kids selling girlscout cookies or school related things, but not the ones out to pressure you into buying crap. If I wanted that I would go to a used car lot!
