Jack:
"My brother was sick and went to the doctor."
John:
"Is he feeling better now?"
Jack:
"No, he has a broken arm."
John:
"How did he break it?"
Jack:
"Well, the doctor gave him a prescription and told him no matter what happened, to follow that prescription. And the prescription blew out of the window."
John:
"How did he break his arm?"
Jack:
"He fell out of the window trying to follow the prescription."