What would you do?

Scenario 1.  Pilot shows up in a Cessna C-162 (Skycatcher) for a private pilot checkride.  Pilot weighs 225 pounds, DPE is 180 pounds and the fuel tanks are toped off.  Pilot presents a weight & balance with the airplane within CG but clearly above Max Gross Weight.  When asked about it, the applicant says "My CFI is 200 pounds and the airplane flies fine"

Scenario 2.  Commercial pilot shows up for his multi engine checkride.  Shortly after take off the right engine oil temp goes above the red line and does not go down when in cruise.  Pilot said "it always does that and the mechanic says it's OK."

Scenario 3.  Initial CFI applicant flying a Vans RV-12.  During the run up the pilot notes the engine is running hotter than what he normally sees.  He hasn't flown this particular RV-12 before but its running hotter than the one he usually flies.  Pilot discontinues the run-up and returns to the ramp.

Scenario 4.  Commercial applicant flying a DA-40.  As part of her preflight, she sumps the fuel into a plastic jar and puts it into the baggage compartment (yes the jar is 1/2 filled with fuel).  When asked about that she responds with "that's school policy".
 
All four of these scenarios are real and have happened in the last 6 months.