I would agree with you to a certain extent, many a time I have attempted to bash my brains out on the sharp pointy bit offered by the corner of my desk when a new graduate "invents" some new and novel way to propel feces at astonishing speed into the revolving metal blades.

But on the other hand I have also had some talented novices do their level best to put the whole mess into orbit.

I suppose what I was trying to get at is there is nothing like years of experience and training when trying to keep the shit in the bowl.