I walk into the room to find my husband holding a ruler. "I've got six inches. I can't decide if eight inches or ten inches would be better."
"Wouldn't ten inches be hard to maneuver?"
"Babe, if you've got ten inches, you don't HAVE to maneuver."
So he gets out the ruler and he measures.
And decides he'll have to visit a cutlery store before he decides what size of chef's knife he wants for his birthday.