Right? After hundreds of calls and no sales, why don't they drop these numbers? You don't even have to scream, btw, one word that indicates you aren't buying, or reporting their number, etc., and they hang up.
Intercepted a call thinking it was someone else, but a man claiming to be with Windows Support to inform me my laptop has been sending off signals of a virus. Eastern indian accent, I stopped him right there and said I knew this call was a scam and to remove my number from their list.