LA 008: How do I influence without manipulating or coercing them?

When I started my first degree at university, I knew I had to get myself a car. Until this point, a motorbike had served me well, but I was going to university in Manchester, England, 200 miles from my job and my girlfriend. I spotted an advert in the local paper from a local used car dealership offering a "Reliable, one careful owner, full service history, Austin 1100 in British Racing Green." It was old but almost in my price range. The dealer was friendly, kind and helpful. He took me out for a test drive and assured me that the car was an absolute bargain. He told me how thrilled he had been from the response to the advert and even forewarned me that someone else had called just before I arrived and they wanted to buy the car too. [player] The dealer was friendly, kind and helpful. He took me out for a test drive and assured me that the car was an absolute bargain. He told me how thrilled he had been from the response to the advert and even forewarned me that someone else had called just before I arrived and they wanted to buy the car too.  Does it matter whether I influence or persuade or manipulate, so long as I get the right result? Does it matter whether I influence or persuade or manipulate, so long as I get the right result? He shared a story about his own Austin 1100 that had been such a reliable little runner. Cheap to maintain and would quite happily trot up and down the motorway regularly. On top of that, it was cheap to insure and easy to get parts "should anything ever go wrong with it." I asked if he could knock a few quid off the price because I was a little short. He tried to get his boss to help, but there was sadly now way. I borrowed the difference from my best friend and I was thrilled to head off that very afternoon down south and was a little surprised as I hauled past Oxford and an orange light appeared on the dashboard. Does it matter whether I influence or persuade or manipulate, so long as I get the right result?He shared a story about his own Austin 1100 that had been such a reliable little runner. Cheap to maintain and would quite happily trot up and down the motorway regularly. On top of that, it was cheap to insure and easy to get parts "should anything ever go wrong with it." I asked if he could knock a few quid off the price because I was a little short. He tried to get his boss to help, but there was sadly now way. I borrowed the difference from my best friend and I was thrilled to head off that very afternoon down south and was a little surprised as I hauled past Oxford and an orange light appeared on the dashboard. He shared a story about his own Austin 1100 that had been such a reliable little runner. Cheap to maintain and would quite happily trot up and down the motorway regularly. On top of that, it was cheap to insure and easy to get parts "should anything ever go wrong with it." I asked if he could knock a few quid off the price because I was a little short. He tried to get his boss to help, but there was sadly now way. I borrowed the difference from my best friend and I was thrilled to head off that very afternoon down south and was a little surprised as I hauled past Oxford and an orange light appeared on the dashboard. I had bought a lemon. So why had I, an educated, not completely dim, and otherwise quite sensible person been duped into buying something? Are we influenced when we are duped? Yes we are. You'll remember from the Triangle of Influence that we are influenced when someone connects a desired result in such a way that the benefit outweighs our cost resulting in motivation. Influence is often considered to be a positive thing. But it has some closely related cousins known as: Persuasion Manipulation, and Coercion Persuasion is still considered OK, but to have been influenced rather than persuaded would be better. To have been forced or threatened into doing something is particularly unpleasant, while being manipulated to do the very same thing is regarded as wrong. How d