No joke, we have one transformer in my neighborhood that has fried six squirrels in the last six months, killing power for everyone in the neighborhood.
The pole sits on the edge of an empty lot, right next to a huge, ancient, dead, tree that's mostly hollow inside so it makes a perfect nesting site.
No one owns the lot, so no one has cut the damn thing down. (The lot is one of those stupid little partials that happen when a piece of a subdivision gets "Eminent Domained" for use as a highway off-ramp...not big enough to put more than a one bedroom cracker box on, so no one wants to buy it.)
I feel sorry for the power company slaves who have to deal with the same transformer, for the same problem, for six months.