DBMS vs BDSM

Developers' joke in Wikipedia:
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http://en.wikipedia.org/wiki/BDSM
Not to be confused with DBMS.
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I guess there are enough similarities between BDSM and DBMS that people confuse these things:
1) Both are complex systems.
2) Dominant (DBA) and submissive (DBMS) participants are present at both.
3) Mutual dependence.
4) Occasional misbehavior.

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Update:
The joke is gone now:
http://en.wikipedia.org/w/index.php?title=BDSM&diff=531294899&oldid=468232518

The author of that joke is banned from editing Wikipedia:
http://en.wikipedia.org/wiki/Special:Contributions/David_Malinin