I'm doing a social experiment and would love your help.
I don't know if I want to help right now.
Write down how you feel about me asking you.
You should not run experiments if your subjects are not consenting to help you. You need people who agree to the conditions to use the results.
It's time to shrink your ego!
It is not about my ego. Experiments run against consent are not valid in the eyes of the scientific community.