[Oh look, another Carlos! Or maybe it's an alternate version. Or a Clone. Or a Double. If it's a Double, maybe he should just run? Unless he's the Double this time - Okay, this is getting confusing.

This Carlos puts his hands up, in a universal gesture of "I am not carrying anything which could be bluntly applied to your skull."]

Hi, um, Carlos. Please don't panic and try to kill me. I'm not sure if that would create a paradox yet. Evidence points to not, but I really don't want to find out!

[Besides, he JUST got the blood out of this lab coat!]