Traveling toothpaste

One of the mysteries of the earthquake experience that has me scratching my head is how a tube of toothpaste got from my bathroom into my son's room. When I got home I found my toothpaste on the floor in his room. It had traveled from my bathroom, through my bedroom, across the hall and into his room, making a 90 degree turn in the process. I used the toothpaste in the morning, was the last to leave the apartment and the first to return. The physics of this are just perplexing.