Trappers and indians did not have the science we do - and most scents used by trappers are for attracting - a totally different purpose. They would boil traps to eliminate oder.

I do believe that scents can be used for attraction and curiosity.

I do believe our scent can be reduced so that we may be percieved as less of a threat based on how close we appear to be.

I don't believe they is any way to confuse a prey animal by adding any scent whose life depends on their nose and have the proven ability to process and distinguish many scents at the same time.