My early experiences with the breed were always bad ones. Always a 20 something bong smoking male with a pittie that looked like it was fed roids for breakfast everyday. I used to worry about the one two doors down from me all the time that was mainly because i knew the owners past and what he was capable of.
Even now at the local dog park i'm still weary whenever i see one, even around Nero. Sorry i havent seen enough to change my mind yet. That said putting a dog to sleep just for appearance is beyond me.