I'm not exactly sure that I know what a tenter-hook is, but I'm on a few. I was musing that I seem to spend a significant amount of time in a state of heightened anticipation. Maybe it's an artist thing.
Waiting to hear about things; searching, thinking - all the time; looking for opportunities; will it work? etc., etc. I like to think that I stand on the positive side of objective, but dreaming is as essential as air.