If you practically grew up in a broad/mainline evangelical church like I did, it's likely that you've been charged with acting in a less than Christian-like manner—apart from actual Scriptural imperatives. This is because one of the chief commandments of the moralist is niceness.
It seems that for men, at least, less testosterone is more. While I cannot accept the cheesy posturing of a Mark Driscoll, the times, I believe, demand the employment of creational endowments that serve to augment passion in the defense and protection of orthodoxy, testosterone being one of them (the rap sheet of this hormone includes the crime of inducing un-niceness).
I'm not sure if Tim Challies' hormone levels were higher than usual at the time he wrote this post, but he sure wasn't nice to the nice men. To that I exclaim, "Nice!"
Another post on an article by someone not particularly renowed for niceness can be found here. Hehehe.