Hid from a vacuum salesman
Kirby?
I think you did the right thing by not inviting them inside.
I have someone calling me trying to set up a "free carpet shampooing for any room in my house" that "I won" and it is supposed to take just 45 minutes.
I had one of those before. They were there for hours and hours and never managed to even vacuum the whole room, let alone ever attach the shampooer to shampoo the carpet in there. I think that I had already vacuumed the whole room before they got there, but they wanted me to get out my vaccum to compare and they just kept going over and over the same spot on the carpet with their little filter paper instead of a bag and then they wanted to go to my bed and vacuum my mattress. The whole time, they kept asking, "What is it going to take for you to buy this Kirby today?"
By this time all I really wanted was for them to leave my house without me having to buy a $1600 plus vacuum cleaner to get rid of them, which I had no intention of doing, and there was no way I was going to let these strangers go into my bedroom.
DirtDawg is probably more persuasive than I am, but I thought having the Kirby salesmen in my house was a nightmare.
I looked at a Consumer Affairs website to see if my experience was common (it was) and then I saw that they treat their employees like dirt too, making them work incredibly long hours without paying them.