Thanks for comment.
Let's see if I can draw a wiring diagram....
wall mounted GFCI---------duplex---GFCI cord terminated hair dryer
|
|--- in-line switch -----7 1/2w lamp
Well, almost drawn correctly. The cord terminated GFCI and the cord with the in-line switch are both plugged into the duplex - so the cord to the small lamp is "upstream" from the hair dryer GFCI.
The GFCI device and the duplex recept are in the same wall case.
I had thought about inrush and inductive load, but in this scenario, the hair dryer is off, and switching on or off the small lamp trips the GFCI on the end of the hair dryer cord.
Grov
