Chase was forced to stay while the others went on mission because of something stupid he did

"Why am I being left here? I'm perfectly fine!" He says and sits up from the couch which he was laying on

"Ich kann alles tun, was ich getan habe, bevor ich verletzt wurde (I can do everything I did before I got hurt)" He speaks in an annoyed voice

After a few minutes he looks at his right arm, wrapped in bandages, he knows he shouldn't use it since he got shot but can't help but feel a bit left out

"I'm so stupid" He says hitting himself in the head "Why'd I go in when I knew they hand a gun?" He stands up and walks over to a wall, stares at it for a second before leaning on it and hitting his head against the wall until he feels light-headed "It's your fault" He repeats while continuing to hit his head against the wall

A few hours later, the others are finally done, he doesn't notice since he's passed out, sitting down with his head leaning against the wall