How would you feel if you knew I intentionally give people misinformation to teach them to listen carefully?
Feel like it's not very helpful. Why do you want to misinform people?
Because people are not paying attention to me.
It sounds like you're frustrated.  Even if people are not paying attention to you, it's wrong to misinform them.
I'm not saying that small mistakes that happen are okay, but I do this to teach other people to be more attentive.
I understand you want to make more people a attentive, but this is the wrong way to go about doing it. Misinforming people could be potentially harmful to them. I recommend no longer doing this and finding some other ways to make people more attentive.