Ha! Sometimes the people coming out are worse...
I was selling my gelding- a 5yo paint who was very,very green. Sweet as a dog, but stupid- goofiest thing ever. But, had to downsize so I was trying to sell him.
In the ad, I said he would make a good kid PROSPECT, but was not ready. He needed to finish training and get more miles under his belt. I very, very, very plainly said this. I also said, if you don't have experience training a horse, then you need to have a trainer in line to finish him. (I would put kids on him and walk them around- my niece who was almost-not-a-beginner would ride him in the round pen, but she had known him and worked with him awhile. But, I wasn't selling him as a bomb-proof total beginner-ready horse. He'd been easy for someone who, say, was familiar with horses and looking to learn how to train, etc. He has the personality of lab puppy)
One of my most amusing responses was from a young sounding girl, went like this:
"Hi, I'm interested in buying your horse"
"Great! What information would you like to know?"
"I've only ridden a horse about 10 times, ya know, at horse trails and stuff and think I'm ready to buy one and yours seems really nice."
"You've only ridden a horse 10 times?"
"Yea. I think I'm pretty good at it. Even went fast a couple of times."
"Ok, well- do you have a trainer or someone to work with you and the horse if you get one? You understand he's not fully trained right? And you're not either- so you need to have someone."
"Well, I've ridden them- and they seem to like me. Never got kicked or fallen off or had any problems, so I think it'll be okay."
"That's because they were TRAINED to not give you any problems."
"Oh. Nevermind then."
Oh, and then some guy came out to meet him, and ride him- guy seemed to know what he was doing after talking with him a bit (I shoulda known better) so when he came out- I let him go out in the pasture and catch him, saddle him, pick his feet, whole nine yards (Figured it would show him how good of manners he had, etc).
Everything seemed fine til guy went to get on him.
He went to get on him, flung himself up over the other side of the horse, grabbed the saddle horn and fell so hard he pulled the saddle under the horse- with himself.
Personally, I would think it was a testament to my green-little-geldings potential that he only took a couple of steps sideways- He was confused, and annoyed, but still just stood there while this guy is hanging under him...
But there was no way in hell I was selling that guy myself. He didn't need someone dumber than himself.
The person with the ad describing their horse as "nice house, nobody home" would have been appropriate for this particular horse.
Fortunately, eventually, I was able to find him someone who fell in love with him and is giving him all the love he needs.