Did you have any funny misconceptions as a child?

Children have big imaginations, and sometimes they may think some pretty funny things.
I know when I was younger I had a few misconceptions about things.
I thought that babies kind of just ‘happened.’ I didn’t realise that you had to do anything to get pregnant, I thought that you would just become pregnant somehow. I was kind of scared about that.
I also thought that Australia was the whole world. I thought each state spoke a different language. I’m not really sure how I discovered there are many more countries.
So y was two of my misconceptions. Did you have any funny misconceptions as a child?