how do you respond to a crazy low rate from a broker?

I posted a truck today then a few hours later got a call from a broker about that truck. He had a load in Athens GA going to Laredo (1200 miles) and said the load paid $1700.00 for a grand total of $1.41 per mile. The conversation from that point went like this.
Me: I cant do it for that but I can do it for X.
Broker: I cant do X. shipper wont pay that much.
Me: You need to educate your shipper and I'm gonna help you.
Broker: yeah?
Me: Yep. Did you know that the American Transportation Research Institute did a cost per mile study and determined that the average cot to run a truck is $1.65?
Broker: No I didn't know that
Me: Yes sir, its online you can google it or I can email you the link if you would like to give it a read.
Broker: that's ok I can find it.
Me: Now that is an average and every companies cost is different but still armed with that knowledge if you were in my shoes would you take a load that paid $1.41?
Broker: probably not
Me: Me either but I can do it for X
Broker: I don't have that much in it.
Me: Sorry that the best I can do. Thanks for calling, have a nice day.


Now that probably went in one ear and out the other and he prob doesn't give 2 shi*s about what my cost are. However he isn't special and therefore he gets the same treatment everybody else gets.
After this little exchange I started thinking how do my fellow TR members handle those situations? Do you try to educate them and essentially waste your breath like I do? do you say thanks but no thanks and hang up? do you tell them where to go with their rate?
I look forward to hearing your response. Oh and if your interested the study I told him about is located here.
http://www.glostone.com/wp-content/uploads/2012/09/ATRI-Operational-Costs-of-Trucking-2012.pdf