Huh? Do you mean what would I do if my best friend who turned into a zombie attacked? Nothing, because he would eat your brains first, you live a lot closer to him than I do. Or did you mean something completely different? Am not sure.
What would you do if everything you tried to communicate was turned to gibberish, so no one could fully grasp what you were trying to communicate? Doesn't matter if it's typed, spoken, hand signals, whatever, it comes out a gibberish.