called from a heating and plumbing company offering duct cleaning and furnace inspection. when i told him i was on the do not call list he shouted that it was impossible and he was going to sue me for falsely accusing him of a felony.

"Bob" called from a heating and plumbing company.  Became very abusive when I told him I didn't need anything and asked to be put on the do-not-call list.

Same here very rude, would take no for an answer.  Stated the manufactured required my heater to be cleaned twice each year. called twenty minutes ago.

have no idea... there was dead air

This person keeps calling me, the next time he calls i will tell him to meet me in a dark alley. I am so tired of this B.S.