Ms. Dyspnea: "I don't like this oxygen mask. It hurts."
Dr. Grumpy: "Well, you need it to breathe. The other only other option would be to intubate you and have a machine do the breathing."
Ms. Dyspnea: "That's what the idiot nurse told me!"
Dr. Grumpy: "It's the truth. You need oxygen to keep going."
Ms. Dyspnea: "Bullshit. I asked the nurse if I could just get the oxygen in my IV, and she said she couldn't do that. We all know she could just take off this stupid mask and plug it into my IV instead."