Refrigerator eyes

Overlooking the obvious. It's when you're searching everywhere in the refrigerator for the milk, only to fail to notice that it's right in front of you.

1. "I can't find my keys."

"Hey Refrigerator eyes, they are in your hand."
2. Looking for your sunglasses when they are perched on top of your head.
3. Trying to find a pen to write with while it's already in your pocket.
4. Looking for your phone while talking on it and not realizing it's in your hand.

left hand black

Ink absorbed on both the heel and fingers of the left hand, resulting from a left handed person writing with an ink pen and smearing his/her own newly inked text as they etch across the page from left to right.

Oh, my left hand black has exposed me once again. As the only southpaw, the teacher will quickly discover that it was me passing smudged notes in class.