Charlie gives him his most displeased look. Seriously?

"Not everyone in this place is from the fucking Utopia shit future. Someone shows up our time, earlier, decides they don't care for us being around, take it out on yous."

Does he need to remind you of the fights he got into back then they were kids? Charlie would come home bloody and barely standing and the last thing he want is for Meyer to have any more of that. Or ever again.