The Lowes near my house has a service/sub-panel display that's sort-of right. If the service panel had the main in it, everything would be copacetic, but they use a MLO panel and neglect to include the service disco. or any of the grounding/bonding issues that involves.

I'm really amazed that these places even offer a DIY Service seminar. Seems like anyone who knows enough to install a service would know that isn't a project you can or should advocate for the average electrically-ignorant HO. What's next? Maybe a course on how to build your own glue-lam structural trusses. [Linked Image]

-John