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Me: answers phone
Guy calling me: "Is that Adrian? I'll be honest with you, this is a sales call, so if that makes you want to hang up we can end it now"
Me: "Heh, probably, although I appreciate your honesty. I guess I can give you 10 seconds to tell me what you're selling"
Guy calling me: "It's a platform to make it easy to manage your data"
Me: "Ah, I'd probably just spin up a TIG stack if I wanted to do that, as I prefer #OpenSource options"
Guy calling me: "Ah, fair enough. Thanks, bye"
If all sales calls were up-front and as short, I'd be far less sales-hostile.