In Yucatan I tumbled into a hedge of poisoned cactus and had to operate on myself--quickly, too--to save my life.
Wild with pain, I slashed my face to get the poisoned tips of thorn out of the flesh.

Parts of my body are like my face, but fortunately I can cover them.

It was bad surgery.

On another I could have operated without leaving a scar, but I was frantic with pain.

Don't stare at that big eye, sir; it's glass.