This is a very short but terrifying story which happened to me last year.
One night me, along with my family, were praying the Rosary as we would normally do every night. Now, I am not very fond of being there every night praying for more than an hour but I would definitely do it when my parents would ask me to.
I do believe in God. Me and my family members are a very religious family. Every often, in between the prayer, one member of my family would make a personal prayer. It was my dad's turn. As he was speaking I started feeling weird, different, I knew there was something wrong. My face started to smile, and I say my face because I was not trying to smile. It was like I wanted to laugh looking at my dad as he was speaking. My dad stared at me and kept praying.
I don't know how it happened or why because this is usually a serious time. No one made me laugh and my dad had not said anything funny. I just smiled and giggled under my breath. Everyone stared at me with confusion and shock. I was shocked myself and very scared under my smile. I knew it was not a friendly smile. I was almost snarling a very evil smile, like making fun of what my dad was saying. I felt fear inside me but I couldn't stop. I was just smiling a very big nasty smile.
He then started to pray to God so that he can liberate us from all evil. My dad spoke about how sometimes the devil uses us to manifest itself towards things or people that intimidate him. We all knew he was talking about me.
After he finished, I stopped smiling and we never spoke about it. Until this day nothing like that had ever happened to me but I will never forget that night.