If you do not know about the positive reinforcement, whenever you will see a a person using treats when with a horse, you will see bribery.
If you do not know about possibilities of learning from a horse and thanking him for this guidance with a treat, but you know about positive reinforcement, anytime you see a person using treats when with a horse, you will see either positive reinforcement or bribery, depending on your awareness.
In our lives we all the time see things that look similar on the outside, but in the inside, in the very core of their essence, are very different.
If you see something, you can understand it only to the level of your awareness. Allow yourself to grow your awareness by staying very Calm and by refraining from downgrading your experiences to match your current level of awareness.