Oh yeah! Those were great days.
At one of those picnics, my youngest (and only surviving) brother fell off the Fire-engine and whacked his forehead big-time on a curb...I'd never seen such a noggin-egg in my whole life!
I remember that there was a move to remove the local congregation from being involved with "officially" sponsoring such local activities...and the little hand-written notices on the bulletin board disappeared. I'm pretty sure there was some KM article on this, but a quick search of the WTCD didn't give me any results.
But, at least here in Portland, what really put the kabosh on such things was when about 25 people got into trouble (read disfellowshipped) for having such little "parties" (you take my meaning) after meetings. This was a city-wide thing (and that was in the days when the "circuit" in Oregon encompassed just about the whole state). "Needless to say" (now there's a Freddyism for ya! LOL), there wasn't another "party" around here for years.
Lots of beer-drinking (but, then, that was before I "knew" about such things).