How old is your Bullie? Until they are a year old my opinion and recommendation is to prevent them from jumping or even standing on their back legs to lean up against you. I had a puppy who got hurt as a young puppy but not too bad. I am very cautious and make sure that my g'kids know to not encourage them to jump off the couch or jump up.
After the one year mark, they are generally OK with some reasonable jumping. 4 ft does seem like a bit much.