Left some stuff behind

My work takes me to places that many do not get to see... the inside of homes hundreds of them, even thousands... literally! Most times its not a big deal... but on occasion I see some stuff that gets my mind working and wondering as to why. Why did this happen, how? Were they in a hurry? Why did they leave so much behind? How come they did not clean up the place? Why did they clean up the place? Where they upset? I will never know the stories behind such things, but I still cannot help but wonder...