What is the best example of a character being built up by others to be a bad ass only to be shut down immediately?

Saw this a lot in Overlord I was wondering if other shows had this. http://ift.tt/1OhWZWR

What's an interesting fact about an Anime that not a lot of people know?

Like if any Anime has the exact same time length each episode or if an animator put in an Easter egg or something of that nature. http://ift.tt/1KdPVmN