Perhaps some of you guys should think of welders like your Doctors as you might be more familiar with those. All doctors went to medical school. The podiatrist, urologist, proctologist, (all Drs) are not equally skillful in oral surgery or cardiology (also doctors). Then you have the endocrinologist and neurosurgeon also doctors and some may have even gone to the same medical school. Wouldn’t you be pissed off if the podiatrist had go at your pecker, ticker or brain? If you’re proctologist what’s to do something in your mouth I’m guessing there’s confusion.