[You just got into an argument at the bar. Feeling bitter and nauseous, you end up puking in an alleyway. Looking up, you see a couple in the distance.]

Ugh. Disgusting couples. You mutter as you wipe the puke from your mouth

[Your eyes then widen when you see their partner go limp, then fall to the ground. The man left standing there wipes a red liquid from his mouth. Chills run down your spine. He noticed you. What do you do?]