Contamination and Cross Contamination

"I would contaminate EVERYTHING with the treat scent--the apparatus, random spots on the wall, my shoes, you name it. Rather than get into a futile effort to maintain sterile procedures, I'd let the dog learn that the only odor that pays is the target odor."

~Steve White

Observation Precedes Interpretation

"If I am busy interpreting behavior, I will often miss behavior that does not fit my interpretation. An observer should first of all observe. After duly recording what has gone on, then interpret, speculate, analyze, or do whatever, but, first, observe critically." 

~Bob Bailey