Originally Posted by csucbrown

After I received my instrument rating I offered to act as a safety pilot for the guys at my school still working on theirs. On one occasion I was riding in a G530 equipped c172. While en-route the GPS gave us a big middle finger ("GPS SIGNAL LOST") and the student flying under the hood completely lost SA in a short time and wasn't sure what to do. He's probably not the first one its happened to.

Once I get my CFII I'll make sure to reproduce that scenario for all my students.