On my last night at Columbia St, I misplace my car keys, and thinking that I threw them away, dig through multiple trash bags. I give up, have Stan drive me over to Margaret's where my spare keys are (and where I will be soon), I dig around, can't find them, tell Stan that he can go back, find them three seconds later, call Stan to wait, come home, look on top of a trash bag, find my car keys. Maybe this would be better in flow chart form.