I think suggesting that most dogs and owners won't need (or greatly benefit) from a fenced yard is the same type of overgeneralization as requiring everyone have the fenced yard in the first place. (thatmutt.com)
Although much information about the brain has been disseminated in recent decades, many misleading overgeneralizations about learning and the brain have also been spread — and commercial products based on half - truths have been aggressively promoted to teachers. (ascd.org)
Absurd overgeneralization: «America does some bad things to, so what's the big deal?» (religion.blogs.cnn.com)