I didn't indicate I don't understand their role. They don't understand mine. They seem surprised and offended when I'm short with them and say I can't talk righ

I didn't indicate I don't understand their role. They don't understand mine. They seem surprised and offended when I'm short with them and say I can't talk right now when they call me in the middle of the business day to "just chat" about some property I hit "inquire" on (and expect me to remember their specific listing). They lack empathy and that's why so many are poor salespeople.