What are your favorite MySQL bug reports?

Bug reports can be fun. They can also be terrible. Either way they can be entertaining. On the Drizzle IRC channel today I saw a couple references to MySQL bug reports: it is stop working and Does not make toast (which reminds me of the Mozilla bug report about the kitchen sink). Got any other favourites1?

1 This one’s for Jay.

I'm Baron Schwartz, the founder and CEO of VividCortex. I am the author of High Performance MySQL and lots of open-source software for performance analysis, monitoring, and system administration. I contribute to various database communities such as Oracle, PostgreSQL, Redis and MongoDB. More about me.