A cow was walking along the bank of the river looking for a spot shallow enough to cross. Finally, the cow found a spot, but waiting there, in the water, was a piranha that greeted her
''Good morning Cow, are you crossing the river today?"
The Cow responded, "Yes. Are you here alone or are your friends hiding nearby, waiting for me to cross the river?"
The piranha responded, "No please do not think like that I am a vegetarian piranha and so are my friends you can cross with not fears at all."
The Cow said, "Ok, I trust you. You seem honest."
As the cow was crossing the river the little piranha and friends swam up to his ankles and started to chew his legs off; "Mmmm. Tastes just like beef"
The piranha's devoured the cow in a matter of seconds. As the swarm left the sinking carcass, with full little bellies, the lead piranha turned to his other companions and belched, "BURP! I just love April fools' day ... don't you?''