Joke Time!

_{Duck and cover...}

A group of dentists decided to set up a new surgery. Since competition in their area was quite fierce, they wanted their new business to have something unique about it.
After much thought, they decided to set up shop on board a boat, moored on the banks of the river. As an added bonus, they also offered river crossings in the boat, with the dentistry work being performed during the crossing.
The business quickly became known as the Tooth Ferry.

Sadly, they went out of business when a rival dentist installed a bridge.

*rimshot.wav*