An interesting word and an even more interesting emotion, (assuming that is is an emotion? certainly feels like one when you feel it!). From the age of around 14 months, we all succomb to feelings of frustration ... and after 42 odd years, those feelings still appear from time to time. At 14 months, they tend to relate to the fact that a square block won't fit into a square hole, because your hand is too small and the block is sitting at the wrong angle. Or, you see a picture of a cat on a book you want, and the book is under a pile of other books in a box you cannot move. Or... you want a toy out of the bottom of the toybox and you cannot reach it. As time passes, those frustrations turn to things like, 'I've lost my keys......, again', or 'why does my computer take 20 minutes to start up these days', 'why hasn't that person called me back with an answer yet'... Wikipedia says 'Frustration is a common emotional response to opposition. Relate