Two bats are going for their midnight feed.
After an hour or so, one bat gets tired of looking and goes home
with no blood.
The other bat comes home with blood dripping from its mouth. The
first bat says enviously, "Where did you get all that blood
from?"
The second bat replies, "Follow me. I`ll show you."
After awhile the second bat leads them to a cave. He says, "You
see that wall over there?"
The hungry bat excitedly says, "Yes!"
Other bat says, "I didn't."
