Analogies

I recently taught Vinny the difference between slotted

and Phillips

screw heads. Then, when he and his screwdriver-obsessed brain encountered the buttons on Mama and Daddy's shirts, he declared that Mama's shirt

is slotted, and Daddy's

is Phillips*!

* The picture is a little overexposed, but the thread attaching the button to the shirt is making an X shape.

Actual screw head photos from McLendon's Hardware.