I would not discount the theory of evolutionary slime.

[Egon's body language stiffens ever so slightly--something only really noticeable to the people who've spent years around him. Or at least, someone who's spent time around some version of Egon Spengler.]

We exposed it to music and songs, gave it nurturing, supportive words. [He clears his throat.] Ray...mostly handled that aspect.

[He attempts to pick up his fork and start working on another piece of cake.]