What to do about diabetic dog and careless family members?

Just tell her it will kill the dog if his diet isn't regulated... A few treats a day will be fine, but he needs to be fed 2 times a day the same stuff and the same amount at the same time everyday to get this under control. Its the only way to determine how much insulin should be given and to keep his sugar levels in the normal range. Once this is under control, he will need to be monitored closely and will likely need to have his insulin increased once in a while. Good Luck..