I appreciate how much self-quantification we have to do in order just to begin to comprehend our selves - yet the ever present imperfection of our own self-evaluation gnaws at us 
Like the underlying question in Quantum mechanics, would the electron fire if we weren’t looking at it?
Anyhow, i thought this was a funny NY TIMES article both for pointing out biases we can quantify and the challenge to realize obscure biases like this exists:
For Lab Rats, a ‘Male Scientist’ Effect
Male researchers may want to bring a female chaperone when working with rodents, a new study suggests: Rats and mice experience more stress in the presence of men than of women.