I always wonder if with these things there is an aspect of confirmation bias, e.g. "that person didn't take the cup so they don't seem like they'll be a good cultural fit, but their skills are too good to pass up so let's hire...[months later]...they're definitely not a cultural fit, let's fire." But what if another person that did pick up the cup and interacts similarly isn't under the microscope as much since they passed their initial test?