Several subtle bits of vandalism have been made by this anon:
http://en.wikipedia.org/wiki/Special:Contr.../69.124.142.231
One of the best was to Billy Crystal
http://en.wikipedia.org/w/index.php?title=...&oldid=99734198
It lasted for ages
http://en.wikipedia.org/w/index.php?title=...oldid=110307400
http://en.wikipedia.org/w/index.php?title=...oldid=135692719
and has propagated round the web
http://www.google.com/search?q=%2Bbilly+cr...n&start=10&sa=N
incuding one undoubtedly reliable source
http://ajn.com.au/news/news.asp?pgID=2582
So, if it's in a reliable source it must be true.