I accidentally discovered an interesting web page Oracle Joke Contest http://www.dbasurvivalguide.com/oracle_joke_contest.htm
It is a small trick that manufacturers attack between each other.
There are a few more interesting, extracted.
Q: What Platform Does Oracle Run Best ON?
A: PowerPoint.
(I have seen a version similar to this:
Q. Which Hardware Platform Does Oracle Perform The Best ON?
A. a 35 mm Slide Projector.
)
Q. How long does it take to tune an oracle data?
A. Nobody Knows, It's Never Been Done
Q. How do you best tune an oracle data?
A. RM-RF $ ORACLE_HOME