@Jay Hinrichs-Thank you for your rather abrasive comment(s).  

I was already hesitant to attend because I read all the negative reviews, but I went to show support for my friend.The instructor (Kory Thruston) was an ugly, obnoxious little man with an abrasive personality and voice that had my ears bleeding at the end of the day.

An abrasive wheel will wear out to quick on a RotoZip.

When Bob Stevens and Chuck Norris sit down for dinner to set the global agenda for the next week they don't read menus or research options... they just order... they inherently just know.Bob multiple people have pointed out that your initial response may have come across as abrasive.

This is going to sound absolutely bonkers and counterintuitive but the best way to deal with negative and abrasive people in business or in life really is to listen to what they're saying and identifying their pain points. 

They will use harsh abrasives and destroy the glaze.

And laminate is strong abrasion resistance.

I also stress to them the fact not to use abrasive scouring pads to "clean" stainless steel. 

But today this person is older, set in their ways, and can be an abrasive landlord. 

Most lawsuits will be scuffs and abrasions averaging around 27k, I forgot but you get the idea.