Originally, whenever Bart was to be drawn from an angle looking down so the top of his head was seen, Groening wanted there to be spikes along the outline of his head, and in the middle as well.
Oprindeligt at når Bart skulle tegnes fra en vinkel hvor han ser ned, så toppen af hans hoved blev set, ville Groening at der var pigge langs omridset af hans hoved og i midten også.