The problem with rude and disrespectful people is not so much the toll they take on us personally, but the damage they can do to our reputation, because they will never become satisfied customers.  As one seller told me, don't take it personally, I hate all real estate agents.  Our reputation is our most important asset.  I evaluate potential clients not just in terms of the commission potential, but also the likelihood of customer satisfaction.  After 11 years in this business, referrals from satisfied customers are my main source of income.

If you are not being treated as a professional, why risk your integrity just for a listing that is going to be trouble? If they want an unsellable price, or are  particularly rude, or just won't listen to any of your professional advice, tell the person, thank you but I don't believe we are a good fit and I may not be able to deliver to your expectations. Thank you for your time. You will save yourself a lot of pain, and time. 

You should read my blog "Listings : to take or not to take." It is all about this. I think the moment you realize they do not respect you and will continuously put you down is the moment you drop them. I saw one deal all the way to the end but it mentally took a toll. The next one I kept for 6 days and said never again!! I dropped the listing. 

I have to agree with everyone else here.  Ultimately it is your decision, but I consider my time to be more valuable use when working with people who treat me with the same respect I give them.  Otherwise, it makes me less productive for the ones I really can help.

Turn down the listing when they don't want to price it at the price you recommend. If the seller is not motivated.

Shuchi,

 I will not tolerate rudeness that having been said, find out why the seller is rude, maybe they really do not want to move and they are trying to put obtacles in the way. Moving is a very emotional experience for many and a very stressful time.

Shuchi Agrawal If the seller is extremely rude and consistently puts you down, you won't be able to negotiate price and terms with them. Walk!

It's the rudeness for me that's a game changer. The rest can be dealt with. 

Fo rme it is the rudeness i would not tollerate. Price cures condition but nothing can cure rudeness in some it seems.

Rude, abusive, dismissive, all portend trouble ahead. In such a case, if the homeowner has never taken a step in my direction, I would not hesitate to end the contract.

Good answeres here, and I think ultimately you need to weigh the benefits and detriments to make YOUR choice.  If I want rejection and rudeness, I'll just make more cold calls.  

Any of those factors and all of them! aIAf the price is too high I'm not wasting my time. As for rude, obnoxious clients -- well, I'm older than most of my clients and I don't accept that from friends, strangers, kids, grandkids--so no way from a client. I'm a professional and expect to be treated that way.

If the beginning of a relationship is supposed to be like a honeymoon, it will only go down hill from this point, time to move on.

I had a situation similar to what you describe.  My husband hated the way the client spoke to me.  I decided I'd stick with it until I decided it was over.

I secured a cash offer at a price at which the property never would have appraised.  It would have been a record high in the neighborhood.

The seller decided the agents needed to cut their commission so he could make more.  NO.

Some people may say that making something is better than nothing, but I wasn't going let the seller push me around and think that he owned me.  

My pride and self-respect are worth way more than a paycheck.

Just last week I received a call from a seller wanting me to list his house as he spoke about his property, I entered it into our MLS search engine and it came up as being listed and expired by four different offices. I mentioned this to him and he started yelling into the phone saying "that is a lie" I then thanked him for the opportunity and told him that I felt I was not the agent for him. After I hung up I also muttered to myself "go torture someone else" lol...

Shuchi -- Rude?   That's an immediate...Thanks but no thanks kinda moment. Next.

Rudeness should not be tolerated. If someone is rude at the beginning of your relationship it will probably get worse as time goes on. You could diplomatically call them on it, gently ask them if they are "mad" at you for some reason.  If they are just a bully, it's time to move on!

Price and quality/condition of the property.  I am not a discount Realtor, and I have pride in the clients and properties I represent.  I turned down a listing this year, she went with another agent at $638K because I looked her in the eye and explained that this property will never sell at this price, ever.  I simply wont do it, we would be wasting both my time and hers. 

Spirit

I usually do NOT.

If we aren't the "lead dog" we decline to accept the listing...