A vampire bat flies back into his cave after a big night... he has blood all over his faces. He perches himself on the roof to try to get some rest. But before too long the other bats begin to smell the blood, and start to gather around him. They ask feverishly where he got the blood from.
Knowing that they will not let up until he tells, he says, "OK, follow me!"
He flies out of the cave, across a valley, over a river and into a dark forest. Deep in the forest he stops, all the other bats gather round in an excited frenzy.
"OK" says the bat, "You see that big oak tree there?".
"yeah, yeah" reply the other bats, drooling in anticipation.
"Well I *@#$ing didn't".