If you want them to be happier, preoxygenate before administering the Narcan. They aren't pissed because you "ruined their high". They're pissed because they're

If you want them to be happier, preoxygenate before administering the Narcan. They aren't pissed because you "ruined their high". They're pissed because they're hypoxic (and therefore confused, disoriented, etc), and surrounded by people in uniforms, and don't know how they got there. Bag them up before you push the Narcan and you will have much happier patients.