I can't understand you

The nurse went in to check her patient in the ICU who was wearing nasal prongs. The nurse tried to talk to him, but all she could get out of him was gasping and unintelligible talk.

Finally, the nurse thrust a note pad and pencil at the patient and said, "I can't understand you, sir. Please write it down."

The patient weakly scribbled on the pad, "Get your dang foot off my oxygen tube!"