Are you aware that in-house SEO disasters are on the rise? Nah? Kevin Ryan of Search Engine Watch enumerated some:

Megalomaniac Entitlement Syndrome (MES)

The MES (pronounced "mess") brand of evil is easily identified as the "noob" with a passion for screwing up otherwise well-intentioned plans. The "noob" is not to be confused with the other form of new player, "newb," in a particular arena who actually has intentions of getting better in a particular discipline.

Ill-informed Executive Decision Maker (IEDM)

Similar to the MES entry, the IEDM (pronounced "I-idiom") is identified by making nutty decisions armed with enough information to be dangerous. For example, the IEDM may say something like, "My brother-in-law knows all about that search stuff, and I hired him to help you."

The IEDM is a massive delegator that has yet to learn the delicate art of delegating to competence, as opposed to incompetence.

Screwball Consultant Meltdown (SCM)

The SCM (pronounced "scum") is an affliction of the highest order that affects many in-house SEO folks who are either duped by consultants with a great sales pitch or have consultants forced upon them by IEDM's.

Matt Cutts Hater/Manipulator (MCHMr)

The MCHMr (pronounced M-C-hammer) spends all of his time reading Matt Cutts' blog and attempts to counter-engineer or circumvent the efforts of Googlers everywhere. The MCHMr views everything Google does as evil, and this psychosis has bled into other areas of his or her life.

You may have also noticed them. Actually, they swarm the Net.