Ruining your day

From #mysql Freenode

Here are some things you might want to try to avoid, unless you like excitement... real tales from live installations only, please. Be anonymous if necessary.:)

InnoDB

• How to take a top 1000 web site offline for 36 hours.

Replication

• Site down? But we're only working on a slave.

Chown

• Never run chown -R brandon /var/. It is never a good idea.