My next door neighbor has a Bradford Pear tree in his front yard.  It's his tree but it's big enough and overhangs my driveway enough that it might as well be my tree.  I've pruned it more than him, anyway, and the sap marks on my car from all the seeds it drops should at least entitle me to a say.  While it's one of those famous flowering trees and quite beautiful in the early spring, it is pretty much dropping something on my car, petals, fuzzballs, leaves, seeds, fruit... Throughout. The. Entire. Year.  So there's a con no one thought about.