I found this quite some time ago, but feel it is still very appropriate:
Ten Commandments
“Avoiding Negative Scenes with Diabetic Loved Ones”
by Richard Rubin
1. Thou shalt not act like a Police person.
2. Thou shalt not ignore diabetes.
3. Thou shalt not lead your loved one in the paths of temptation.
4. Thou shalt not criticise when your loved one succumbs to temptation.
5. Thou shalt not talk about your loved one’s diabetes in public unless invited to do so.
6. Thou shalt offer support and comfort, especially when things aren’t going well with the diabetes.
7. Thou shalt have the patience of a Saint when your loved one is acutely hypo- or hyperglycaemic.
8. Thou shalt deal constructively with your own natural fears and resentments.
9. Thou shalt be especially sensitive in public situations.
10.Thou shalt find out what works and do it.
Can you think of any other ‘commandments’ to add to this list?