Boomer can't be bothered to thank me for helping him in an emergency.

I work in a hospital, and I was coming in to work early this morning. As I approached the door, boomer was pushing his wife in a wheelchair towards the door. He was clearly struggling. So, I opened the door and helped him push the chair through the entrance. After he gets through the door he paused and starts slumping while clearly struggling to remain standing. A coworker and I grab his arms to steady him and get a chair for him to sit down in, while another coworker goes to call for a nurse. Two nurses come out to assist, but all the boomer can say is "no, I'm going home." He's clearly annoyed that we tried to help him. His wife says "let him go." So, we let him go. He shuffles out of the building without so much as a thank you. His wife doesn't say anything, either. I mean, if we weren't there he was definitely going to faceplant onto the concrete. These are the most self-centered and self-entitled people on the planet. I can't wait until their generation is gone.