This kinda falls into the "Draw Your Own Conclusions" category…
Last evening, Carolyn and I were in a Home Depot. So were a lot of people buying paint and lumber and ball-peen hammers and flanges and such. So were a number of rats. I spotted at least two rats scurrying about, one of them large enough that I think he was wearing an orange vest and a tool belt.
Just to be helpful, I mentioned it to one of the employees there. He said, "Yeah, we have a lot of them here."
I said, "I know a place that has a whole aisle full of products to trap or kill rats." And I pointed to that aisle, not twenty feet from us.
He said, "Yeah, well, we've tried everything and nothing seems to work."
Like I said: Draw Your Own Conclusions.