Like rats, squirrels will often get into roofspaces and chew through things like cabling and even plastic waterpipes. They also find roofspaces very suitable as nesting spaces. For obvious reasons, this means that they come into conflict with humans. However, traps are also used outside by some because of their preadtive behaviour regarding birds, as well as eating food being grown - in gardens, for instance.
Given the mania for house-building in what is already too small an area with too many people crammed into it, this 'conflict' will only get worse because more and more humans are invading the space formerly occupied by wild animals, leaving the squirrels, rats, foxes and all the rest of the fauna in the way of whatever humans want to do, which for the most part is pollute and destroy. Given that most people in most places in most ways most of the time are stupid, lazy, greedy, weak, cruel, arrogant and selfish, said people -even non-believers, if they're not very bright ones - will always have that attenuated remnant of a religious attitude in them which allows them to get away with seeing themselves as the crown of creation and in possession of
carte blanche to ride (often literally) roughshod over the lives of other beings and so much the worse for them.