He looks so happy :D

Thank you ;D

When you say something is for scale then you are saying you are comparing said item to what you're comparing to. Like when you see a guy stand next to a pyramid.. "Human for scale". The same applies with a banana in recent posts. Also, a scale is something you weigh yourself on, like in the picture. Have you not seen "banana for scale" posts on this website? I hope you understand now.