answer:We were so lucky that was not a problem with our kids… From day 1 our rule was, “When it is time to go, it is time to go.” Period. We NEVER said “OK 5 more minutes.” When at Grandma’s house and we said it was time to go, we said our goodbyes, walked to the door, put on our coats first, then helped the kids with theirs and then left. We did not allow an aunt to start any other discussions. “So when will you help me clean my attic?” “What a nice jacket. Where did you get that.” We feigned selected deafness and walked out the door. The kids grew up knowing it was time to go. They also knew the unprotected wood burning stove was hot. My youngest was a little more precocious and would test things. I actually watched him out of the corner of my eye burn himself but he said nothing. He wouldn’t even cry because he knew. . Another example… At the time I had a powerful electric fence (a 10 mile weeder) I told the kids “The fence is hot. Don’t touch.” Of course I turned it off when they were outside. .One day I was in the barn and my then late 2 year old came up to me and said “The fence is not hot!” That was when I decided I should leave it on. Sure enough, one day, Pow! I saw it happen. Hard to watch . He involuntarily screamed but didn’t cry. He hung around me in the barn and never said a word about it and neither did I. . We never had to negotiate..