When I was in my teens, I had spent the night at a JW's girlfiriend's house. We stayed up most of the night but were required to get to the KH the next morning for the Sunday meeting.
I sat in the back row and apparently nodded off. The Watchtower conducter did not like the fact that I was sleeping and called my name from the platform to read a scripture he had just quoted. Of course I didn't know what it was and there was a mad scramble from all those around me to point out the scripture I was to read and someone handed me a bible pointing to it.
He then lectured from the platform it was important that teenagers were to be at home and in bed on the weekends.
From that point on I was never allowed to spend the night anywhere.