I’m sorry but some people really suck!
I just got a new rescue earlier. From the local post office, a sweet calico kitty estimate her to be about 6 weeks old was left in their dumpster! They haven’t been to the dumpster in three days- the weekend and the holiday, so this sweet baby has been left alone along with all the cardboard there. She is upstairs, she has eaten and she has a vet appointment at 3:00 p.m. Her lungs sound a bit wet. 
People- SPAY AND NEUTER YOUR ANIMALS and prevent this type of thing from occurring. She could have drowned in that dumpster, it has beeen raining for a solid week now!