I have had some success making a conscious decision to turn down my internal censor, so that the default setting is that it's probably okay to go ahead and say it anyway, unless it really jumps out at me as inappropriate.
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And most social groups such as hiking clubs, even political clubs, don't really work out. Leaders are probably sorry they took on the whole thing, many group members just attend like they're going to see a movie and not to talk with and meet other group members, sometimes it kind of becomes a clique of leaders and favorite members, you know all this, I'm not telling you anything new. I tell myself that only one of nine groups really works out and the point is to light-touch a variety of groups. That may be overly pessimistic, but I kind of think that may be realistic.