Its opposite is the "technician effect", whereby your malfunctioning system always works when the technician (who is going to fix it) is present.

Incidentally, the antidote to the Pauli Effect is to tape a raw sausage to your circuit. Everyone knows that your circuit always works when you put your finger on it, and the sausage emulates your finger. (There is actually some truth to this joke, as the sausage/finger provides a little parasitic capacitance, which can make an unstable RF circuit become stable.)