Hank isn't one of those old-school criminals who screams that he's going to kill you; he just states it with a shrug and a smile and moves on with his day. And frankly, that makes the show that much funnier. For example, after Barry guns down an entire Bolivian stash house, Hank shows his then-boss Goran Pazar (Glenn Fleshler) the aftermath as he steps around half a dozen dead bodies, saying, "Ooh, watch your step here. Hey, you know if we knocked down that wall, it'd really open the place up."
He also cuts to the chase when it comes to giving orders. After tipping Barry off that Goran is going to have him killed, Hank has no problem telling Barry that he's "not asking but telling" him to kill Esther. Apparently, Hank has absolutely no time for disrespect.