They were filming in their car, Matt was talking but accidentally kept hitting Chris.

Chris: “Matt! Hit me again and I swear I will punch your teeth out..” Chris said since he was annoyed. Nick was just watching this shocked

Matt accidentally hit him again when talking but go scared and quickly moved his hand traumatized. Matt: “sorry, I don’t want my hand to bleed..” Matt said scared slightly and Chris felt bad. Chris: “it’s okay, calm down please.. Chris felt bad and wanted Matt to relax