Curious ... how far away was the dump? I have read you have to take squirrels at least 5-10 miles away to keep them from returning. Some references say they can travel 15 miles & one even said 25!
True story - friend of mine was overrun with squirrels so he was trapping & relocating. I think he was up to 30+ or more in a fairly short period of time. He had periodically noticed a strange pickup truck parked briefly along a wooded spot just up from his house so one day he decided to watch & see what was going on. You probably guessed it - the guy was releasing squirrels! So friend Bob is trapping like crazy & removing squirrels, only to have someone “restocking” about as fast as he could trap!
The dump is 5 miles or so from her house. She was concerned that they’d just come back, so that’s why she painted their tails.
I’m sure she just started a problem for someone else, too. ;)
We have a few squirrels around, but they’re not much of a problem. There is usually a dog or cat in the yard, so that’s a deterrent right there.