He arrived, no call ahead of time. Came to door with a trainee and I asked them both to wear masks. Larry the repair person said he didnt believe in masks. Went to his car and got a bandanna but I explained I have diabetes and caregive my 90 year old mom and I had a new, dispensable mask for each. He called his supervisor and told me he wouldnt use any mask product made in China. That he hates China. His attitude was the worst Ive ever encountered and he was training a guy. He said he didnt need my business and sped away.