Compare Apples and Oranges 把风马牛不相及的两个人或两种事物作比较

D：I can’t handle it. This is a gut shot. I’m a cardiac surgeon. I’m not an emergency room physician.

J：It’s like riding a bike, Doctor. Just pretend you’re getting paid.

D：No. This is apples and oranges. I can’t... I can’t do this.

J：The man is dying. Just help him.

D：I’d like to. I haven’t done this...

J：Do it!