If it were my child, the consequence would be that he can't go anywhere without me until he improved on the "forgetting". No matter what the reason, the consequence will work. Do it the Love and Logic way, not a punishment, but a consequence and you will see a difference in no time. You show concern and empathy, but still have consequences. This is too important not to.
Mom to Melissa, 29, using Dexcom, 24/7 since 4/10, and T:slim started March 2014. Michael, 34 using MDI's and Dexcom. Melissa is intellectually challenged and needs a lot of help from us to manage her diabetes.