My husband and I decided to raise some fruit trees and so I asked my him to stop by and pick up two pear trees of different varieties as he has the truck. He was more than willing to do so, but I forgot to specify they both had to be fruiting pear trees. He picked up a semi-dwarf moonglow pear and a cleveland select callery pear. Now the cleveland select seems pretty enough, and the reason I wanted two was not as much for the quantity of fruit but to ensure pollination. So my questions are first of all and most importantly - will it cross pollinate or is it too different a variety? Secondly and also importantly, is it the kind of tree I do not want near my gardens or chickens or children for any reason?