Having worked in an Art Gallery I can honestly say that most artists want you to get THEIR point and if you don't they will freely let you know (if they are there. In many cases especially in larger galleries there will be an essay about said artist or said piece of art) At least thats been my experience and trust me , I saw more unconventional art then what would be considered "normal".

"Blessed are the flexible for they shall not get bent out of shape"
"You can discipline and Discourage or you can Discipline and Encourage"
"Gentle in what you do , But firm in how you do it"