Putting an anal thermometer into your mouth, iin?

When I was a child, my mother's mother claimed that sticking a thermometer up the ass was the best way to take a person's temperature. However, I recently realized that she only did this as a way to further abuse me and to see me naked…

One day, when I was very young, I felt weird. I am assuming that my throat was feeling sore because, I wanted to take my temperature. So, I got the thermometer and brought it into my room, where I preceded to stick it into my mouth. I remember it tasting very weird. I don't get why I didn't seem to understand that this thing had been in my ass and had never been washed before. I sat on my bed with this thing in my mouth until my mom discovered me in horror.

She was very upset. I remember her telling me that it had been up my ass and that I could get very sick by sticking it in my mouth. Then she asked me why I hadn't been able to tell that it tasted and/or possibly smelled weird…

I can't remember what happened next but life went on and like most of my strange childhood shenanigans, it was never brought up again. I realize that this may seem to be a little outlandish but, please try to believe me when I say that it is all truth.

Is it normal?