I've had fair share of dealings with conmen and conwomen. They all have the same condescending laugh. Like they know something you don't. They put you on speaker phone without saying they did. They roll their eyes at you when your are catching on to them. And they always run in the same circles as other conmen and conwomen. 

They like to keep up with the Joneses without working for it. It appeals to their narcissistic tendencies... To get something from someone who worked for it. They think they can spend your money better than you. 

Real agents and businesses men to name a few... always eager to involve you in someway and always in some type of hurry always telling you their side of the story... They get off on fooling people. 

Deep down they are just afraid that they are stupid but their ego won't let them admit it. 

Blocking them is the best thing to do imo.