I almost died when I heard this last week, as was relayed by one of my nurses.
A middle-aged couple at clinic seeing one of my colleagues for thyroid cancer. As he went into the treatment plan, the wife listened intently while the husband seemed restless.
And then he blurts out, "I don't see what's the big deal with needing the radioactive (iodine) treatment. You just rub some cream on the thyroid, and it'll go away."
The wife's reply was classic:
"You dummy, that's the hemorrhoid, not the thyroid!"
Needless to say, he shut up for the rest of the visit.