From what i have observed, Polish People in the country anyway, seem to chain or lock up their dogs. I find this strange.
It is, unfortunately, true. Polish farmers have terrible attitude towards animals. The dogs are often chained, starved, kicked, left without water during Summer heat.
People in the cities tend to be a bit better, but still often they get rid of their dogs when they want to go on holidays. A friend of mine found a dog in a forest, tied to the tree, with a bin bag on its head.
Of course, there is also plenty of well loved animals in Poland.