Last night I lost a tooth, it was one of the big ones. I don't believe in the tooth fairy because my mum told my that she was the tooth fairy and showed me all the teeth about 4 years ago. Just after I had lost my first tooth because I wanted to keep the tooth. I didn't want the tooth fairy to steel it. So my mum said that she was the tooth fairy and then she showed my all the teeth that she had collected.