Thousands of untrained wholesalers where everywhere saturating everything until eventually very few could knock down any decent numbers.

I am tired of people thinking they can work 40 hours in untrained jobs and make a living wage.

Horses are astonishingly accident prone and their symptoms of illness may look like nothing unusual to the untrained eye. 

To a completely untrained person it's hard to explain because you wouldn't even understand the underlying mechanics at play.

I definitely wouldn't say his work is shoddy, his work looks very clean to the untrained eye, but he is a DIY guy, and my fear is that a lot of his work while probably structurally safe most likely won't be up to the fine details involved in code.

In the case of @Diane Stinebaugh's renter, a tenant moving in a puppy, you will likely need to plan for baseboard repair/replacement and interior door repairs/replacements caused by chewing and scratching by untrained/young pets.

Its presence may exist without the knowledge of the structure owner and may be concealed from the untrained observer.

However, this house was listed for 4 months, which makes me wonder if there are more issues than what my untrained eyes can see.

There are facilities which recreated shipping containers to mirror traditional self storage buildings and they appear the same to the untrained eye.

It quickly took over a ton of my daily activities as I had a terrible untrained tenant.