Everything's Ruined Testo

Knew arithmetic so well
Working overtime completed what was assigned
We had to multiply ourselves
A bouncing little baby
A shiny copper penny
And he spent himself
Would not listen to us
But when he lost his appetite
He lost his weight in friends
Baby became a fat nickel so fast
Then came puberty
Exponentially
Soon our boy became a million
People loved him so
And helped him to grow
Everyone knew the thing that was best
Of course, he must invest
A penny won't do
But he made us proud
He made us rich
But how were we to know
He's counterfeit
Now everything's ruined