I try to be pretty aware of scams these days, especially being a senior. Plus I'm used to the energy supply scam. One of these overly aggressive sales people came to my door and just wouldn't give up when I told him I wasn't interested, he became so angry he looked like he wanted to hit me. Beware of these people. Soon as you see the 'Nordic' label on their shirt, close the door and maybe even call the police.