Honesty.

Substitute teaching in a kindergarten class today. The sweetest little boy comes over, tugs on the bottom of my shirt. I stoop down to eye level. Huge, innocent, brown eyes. Tiny little voice. "Hey didja lose weight? Cuz last time you were here ya looked kinda fat." Honest little devil, aren't we? Ah, children. Sometimes a little rough on the self-esteem.