Gold: Cog! i made a robot!
Cog: alright, kid. lemme see.
Gold: it um...walks around i guess...i dunno how to program it yet..
Cog: *sigh* pathetic..
Cog: have you even read the notes i gave you?
Cog: ..bah, you're hopeless.
Gold: but..i'm trying really hard.
Cog: well try harder.
Cog taught Gold everything he knows about engineering. he seems a bit mean but he just wants to push Gold to put his all into it. he also took care of Gold and Silver for a while after their parents' deaths.
(Gold is about 10 in this btw)