A childhood belief about speaking

When my sister was little, we would stay at home alone together a lot. We were sitting around one night when the phone rang. I went and answered it and came back It was just a telemarketer so I had hung up rather quickly. My sister asked who it was, and I was in the mood to speak fancily. So I told her it was a solicitor. She wouldn't stop screaming that I shouldn't scare her like that and to stop being mean. She was so loud, it took me a while to calm her down. Once she had settled herself a bit, she let me know (very defiantly) that she knew solicitor meant murderer and that I was just trying to scare her.