Me: Draws a stick figure Sophia in the condensation.
Sophia: That's not the shape a head is!
Gideon: Yes it is! Heads are circles!
Sophia: No they aren't! *Wraps her hands around my head to demonstrate*
Gideon: *Also wraps his arms around my head to demonstrate his point*
The children: *Proceed to fight over my head and its precise shape*