We have the kindest, most beautiful Olde English Bulldogge named Lola. She is so perfect but has 1 major problem I need help with. When anyone comes around, she wants to jump on them. She is not aggressive, but overly friendly. We have been to 2 classes, but to no avail. She is 15 months old and about 52 lbs so she would knock someone over if they weren’t aware of her.