When my kids were little we had these little snotty nosed obviously neglected little kids (a girl usually and sometimes her
little brother) that used to come to my house wanting to play with my girls. They lived several blocks away. I felt SO sorry for them and wanted to be kind. My hubby on the other hand (a usually VERY kind gentle person) had a major FIT!!
They were NOT to come on our property and NOT to play with our kids. I was SO mad at him!!! Then he explained himself. He did not want our house to be the last place those kids were seen alive!!

Scarey stuff, but horribly true.
I ended up following them home one time from a distance to see where they lived and then watched the house for a while. I discovered that their "mom" (and I use the term VERY loosely) would actually put plates of food on the porch for them to eat so they would leave her and her "friends" alone to ....??
I called in several reports to family services over a period of time. Then one day they were just gone. I never found out the circumstances of them leaving. I just hope those kids finally got some care and love.