Have you ever known a cell phone to disappear?

2 stories.. my friend was over at my house and had her cell in her pocket. Occasionally she would take it our to look at the time. All the sudden she couldn't find her phone. After looking around we finally decided to call it. Her mom, who was not with us or even had been, answered it. I was like where are you at? She said she was at my friends house. So the phone somehow telleported 4 miles into her apartment. Then several years later with another friend. He and I were driving around. We only got out at one place. We stepped out at a creek and only walked a few feet right in front of the car, then left. He had his phone in his pocket too and was always checking it. Then we stopped the car on the gravel in front of a haunted church. We didn't get out of the car. After we started down the road again, he noticed his phone was gone. We looked all over the car, went back to the creek. Nothing. I even went back to the creek the next day in hopes to find it. I cleaned my car out really good and looked all under the seats. That phone has still not showed up. We joke around that the ghosts took his phone lol