What will you tell your favorite character?

Glad to hear my question has gathered very much interesting answers!
I haven't enough fantasy for imagine something interesting, so I will watch from the sidelines.

 

If I could meet Cave Johnson, I would... Ask for some combustible lemons.

(I made one before. Strongly reccomend using battery acid and other volatile chems, freeze drying em, and putting it all In a lemon, but gunpowder from fireworks. Worked fine

 

Also ask an engineer in tf2 to put a dispenser here. I need one. Need a dispenser here!

 

A little update:
"Presidente, please, while they may disagree with you, please stop sending armored divisions after every protest. Maybe... it would be cheaper and less bloody to fix healthcare?"

 

If i were to meet Lucio i would tell him to drop the beat.
As for my second favorite character, Junkrat, probably something about explosives.