"mouse and elephant joke" joke

One day an elephant and a mouse were sitting in a bar. The
elephant got very drunk and was exiting out of the bar with
the mouse and fell into a hole. Well the mouse said he
had a little red sports car which would pull the elephant
out of the hole. And he did just that. Well the next
night the elephant and the mouse were back at the same
bar, but this time the mouse exited the bar and fell into
the hole. So the elephant said he had a big dick that
the mouse could climb up on, so he put his dick in the
hole and the mouse climbed up it.
What's the moral of the story?
You don't need a little red sports car if you have a
BIG DICK! Ha Ha