These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Professional
Complete Monster: Stansfield is such a psychopath that even his own men are afraid of him.
Moral Event Horizon: Stansfield crosses it faily early on, when he kills Matilda's family.
Narm: Léon's slow motion, cross-eyed "AAAAAAHHHHHHH" right before his room gets hit with a grenade.
Special Effects Failure: Stansfield discovers the grenades in Leon's vest. Cut to outside, where one of the cars blows up before the explosion happens in the building itself.
The Woobie: The main characters. Léon especially, who even as a hired killer, behaves rather childishly and innocent. He drinks milk, waters potted plants and watches old musicals with the look of a fascinated boy.
