premise: The black cloud 's clinic is full of complex patients who need three referrals apiece . The white cloud 's clinic is full of patients who do n't show up . What finally got me to believe in the power of the black cloud was one resident I worked with last year . One month she was working in the clinic but covering call in the PICU every fourth night ( as I am doing this month . ) Why are you cover call in the PICU this month ?
hypothesis: I needed to make extra money so I applied for the position