I had once a person knocking on my door and telling me that there was an article in the newspaper that announced his arrival and asking me if I had read that article (there was never any article like that, though).
He told me he wanted to ask some questions. I said shoot. He wanted to write something down, but had nothing to write on and asked to come in. At that moment I knew this was fake, he was unprepared on purpose. Nevertheless I let him take one step in my home (just one step away from the door, nevertheless I let him in, which was a mistake). He proceeded to ask questions involving my opinion towards drug addicts and if they should get a second chance. I refused to give a definite answer, because these questions were just too broad and depend on the situation and the person involved. It turned out that this guy wanted to sell me abonnements for several magazines, and he claimed he had been a drug addict himself, but wants a second chance and needs money to get a proper education. I refused.
"But you told me earlier that drug addicts deserve a second chance"
"I did not. Did you even listen?"
I also knew that this whole interview was just to get me later with this argument, so I feel forced to act in accordance with what I said.
He tried really hard to convince me by other means. He was not successful in getting my money, but he was so hard to get rid off, because he had one foot in my door. I regret that I allowed him to come in and that I did not throw him out immediately later.
Very often I know that something is fishy, but find myself in the position that I don't want to come off as rude and I can watch myself saying or doing things although I know at this very moment that I will regret them.
I want to know, how I can get myself to react in a better way and protect myself better? How can I get over my own politeness?
Once I had a similar situation with a person asking me three questions, which were all meant to be answered with "yes". It was like: "Do you care about your environment" "Do you prefer to buy stuff that is good for the environment?"
I was somewhat in a weird mood and answered all them with "no" (which was an honest answer at that moment). The face of the interviewee was hilarious, though. The next day three people stood at my door and wanted to come in to give me a present, because I won something for this interview. I refused to let them in, I had only a 7 qm room and no space for three people. I said they can give me the present and go away, why would they need to sit somewhere to give me a present? Turned out they actually wanted to sell something and I was glad that I refused.
But I really felt bad after both of these incidents. I still felt like a victim and for the whole day I was in a bad mood because of that.
It is always like that. I somewhat manage to get out of the situation without paying or buying or signing, but my time is wasted and my mood is down.