Custer's Last Thoughts

The curator of an art gallery commissioned an artist for a painting depicting
General Custer's last thoughts.  Weeks later, the artist unveiled an enormous
canvas with a lovely blue lake painted in its center, with a fish leaping from
the water with a shining halo around it's head.  On the shores of the lake
were the most detailed pictures of Indians fornicating in assorted positions.

After gaping at the painting for some time, the enraged curator demanded to
know what the theme was supposed to be.

The artist said, "You asked for a painting of Custer's Last Thoughts.  That's
it.  Custer was thinking, - Holy mackerel, where did all these fucking Indians
come from?"