I can remember on two occasions when my Dad went to the "town dump" /landfill and brought home a box of kittens that some one had thrown away like garbage. Not once -but twice!
Even Layla, we think was "discarded" before she was caught and taken to the shelter. I'll never believe that she ran away from her previous home.
I once tried to sneak a stray dog home that I found in Texas while we were visiting my sister. Not sure how I thought I could keep a dog quiet in the backseat of a car from Texas to Wisconsin.
Oh, and my dad let me keep it!