I wouldn't. The whole idea is that you are not responsible if something goes wrong. You are evaluating the PIC and his co-pilot perform their duties. You are not responsible for the flight.

My $0.02. They're worth what you paid for them.

P.S. The people on here that will say that they would be called in on the carpet as an EP if the A-code did something wrong has Shi++y leadership & Stan/Eval.