Two Vampires Were Sitting - A Groaner
So, they changed into bats and winged there way over to Italy. They set themselves down in Venice and went looking for their dinner. Soon, they found a nice dark bridge over a canal to have their meal. They hunkered down and waited. In no time, an Italian couple came floating down the waterway. As they passed under the bridge, the vampires grabbed them, sucked them dry and tossed them into the water.
As they licked their lips, they discussed how good Italian food was and they both decided it was so good that they wanted seconds. Again, they hid and waited. As before another young Italian couple came floating down the canal. Also as before, the vampires grabbed them, sucked every drop of blood from their bodies and tossed them over the side of the bridge.
Now, the vampires were feeling pretty full, but they decided to make it a really special night and to have some dessert. Waiting in the dark, they soon spied another couple approaching their bridge. When they got there, this couple also found themselves subdued and their bodies sucked dry. The vampires then tossed the dead couple into the canal. Satiated, the vampires prepared to change form and fly home before they were caught by the coming dawn.
They stopped however, when they heard singing. Not wanting to be seen, they searched for the source.
A quick glance proved that they were the only ones on the bridge. The sound however was coming from the canal.
Slowly they approached the rail and looked over. Sure enough there in the water they spied a crocodile. He was munching on the bodies singing, "Drained wops keep falling on my head..."