GFCIs and The Dark

This morning, I'm in the bathroom and SWMBO turns on the WaterPic.  The GFCI trips and the lights...  go out.  Then I hear a noise that sounds like little plastic pieces bouncing across the floor in the dark.  Hmm...

1. tripping a GFCI outlet shouldn't cause the lights in the room to go out (obviously *that* work was never inspected...)
2. the reset button on a GFCI outlet shouldn't go flying around the room like the jumping light bulb from that scene in "The Return of the Pink Panther"

Off I go to get a new GFCI outlet.

And I can't wait to remodel this bathroom.