I guess I look at things a lot different that one person with one horse does.
Frankly, I don't care how the last person that had a horse did something. I don't care if they set or threw a saddle on. I don't care if the horse stood like a well mannered horse should for either approach or if he freaked out and tried to run off. What he did before is not going to influence what he is going to learn in my care.
I just want to turn out a horse that any dummy can saddle, bridle and ride anywhere. I don't turn out horses with a list or a resume. A well trained horse just stands there and does what he is supposed to do, no matter how he is approached. Anything less -- well he needs to be worked on and taught.
I will tie a new horse up to see if he ties well. If he does, I go to grooming and saddling. I always have a second lead attached so a new one cannot run past me or turn and kick me. (Its happened)
Then, I approach with a lightweight saddle. I work on this until he stands good to be saddled.
I take each step -- one at a time -- and stop and work on the ones that need to be worked on. We go as far as we can each day and always stop when the last task has been accomplished to my satisfaction.
I learned a long time ago that people lie about their horses when they bring them to a trainer. They either misrepresent the problems or are too dumb to know they are problems or just just tell you a total lie to get you to take their horse. (Like you aren't going to know once you have it.)
I have had horses attack me, try to kick or paw me, run over me, rear up and throw themselves over, buck like a PRCA rodeo bronc and about anything else a spoiled horse can do, so I treat them all like they might do any of the above and just go from there. A horse's history is just that --- HISTORY. It does not shape its future if a person is competent. It is just a starting place.