Walking into a store (or any location, for that matter) while knowing that I have forgotten my purpose for being there.
Bananas with any amount of brown on them.
Missing a shot on our basketball hoop after making in nine in a row.
Feeling that my lack of understanding in an area is being used against me, often at an additional financial cost.
Finding a bug crawling in cereal that had been poured from a newly opened box (this happened this morning).
Plants with hidden thorns.
Not being able to sneeze when it feels like I need to sneeze.
Taking a bite of a meal and tasting an unexpected mushroom--or any other sort of fungi.
Discovering that a favorite shirt has an irreparable tear.
Standing on a scale.
Watching people suffer from mistakes that could have been prevented.
Accidentally making noise in a room where someone is sleeping.
Getting ridiculously angry when losing a game.
Having to rush a conversation.
Being underappreciated--especially after dedicating a large amount of time or effort.
Realizing that I had underappreciated someone who deserved my recognition.
I'm certain that there's more, but I think that I've captured what I was attempting to do.