A man went to visit his 90-year-old grandfather in a very secluded rural area of the state he lived in.
After spending the night, his grandfather prepared breakfast for him consisting of eggs and bacon.
He noticed a film-like substance on his plate and he questioned his grandfather,
“Are these plates clean?”
His grandfather replied,
“Those plates are as clean as cold water can get them, so go on and finish your meal”.
That afternoon, while eating the hamburgers his grandfather made for lunch, he noticed tiny specks around the edge of his plate and a substance that looked like dried egg yokes, so he asks again,
“Are you sure these plates are clean”?
Without looking up from his hamburger, the grandfather sais,
“I told you before; those dishes are ...