The technician needs spell-check, or sumthin

There are some words I habitually cannot spell. The past, present and future of commit being good example. So, I rely on spell-check for some things and on work pieces that are externally printed, I rely on spell-check and proofreaders. I'm just of the opinion that spelling mistakes are bad business. But are they bad business for all businesses? I don't know. While driving to the office this morning, I passed a company truck with a custom paint job on the side and tailgate. Air Conditioning Technitions painted in a large blue font across the tailgate, with telephone details. Am I the only one who would not call this company due to that?