The villain who detaches me off the storyline

Why in the hell would anyone lick the blade of their weapon? I mean, in reality if I'm about to be attacked by someone who does this, I'll feel a bit of ease/hope in anticipation that they hurt themselves or I'll just do my counter attack at that moment hoping that they startle and cut their own tongue.

At that point of the movie, my mind goes astray thinking of all the mentioned above and I'm totally detached, and might even miss the scene events.

I'm sure the majority are mesmerized by such scene but that's just a result of falling for the stereotype Hollywood villain persona.