the funny thing - when i first saw this thread title, shemp came to mind immediately. it wasn't surprising to see i'm not the only one who thought of shemp when it comes to class
another one is andrej from nextdoorcash. patience is his middle name, and he never speaks poorly of anyone. he takes care of business but always has time for a friendly word.
also don mike at worldwidecontent - he's a rep who is on the side of the customer, never loses his temper, and is just a great person to deal with.