Joke

Two young men came upon a great trout brook. They stayed all day enjoying the fishing. At the end of the day, knowing that they would be graduating from college soon, they vowed they would return in 20 years.

Twenty years later, they walked into the woods and before long came upon a brook. One of the men said to the other, 'This is the place!' The other disagreed, but the first man said,' Yes, I recognize the clover growing on the other side.'

To which the other replied,

'Silly, you can't tell a brook by its clover.'