A marine biologist developed a race of genetically engineered dolphins
that could live forever if they were fed a steady diet of minah birds.
One day his supply of the birds ran out, so he had to go out and trap
some more.  On the way back, he spied two lions asleep on the road.
Afraid to wake them, he gingerly stepped over them.  Immediately, he
was arrested and charged with transporting minahs across sedate lions
for immortal porpoises.

(refusing to sign...)