This past week my son has remained on 230-250 despite corrections, changes in basals from midnight to six a.m. We are tired and desperate. Today his doctor at school calls me and says 400 after lunch... . We come home and his cannula was torn and bent. He is five years old and his site is on the buttocks. Anybody with problems with the cannula? How can I prevent a 5 year-old boy from playing soccer or being 'careless' about it?