Billy's Law of Genetics

[ADAM]
Bum ba bum ba bum bum ba bum ba bum
Bum ba bum ba bum
[LADIES & DARREN]
Bah-da
[ADAM]
Bum ba bum ba bum bum ba bum ba bum
Bum ba bum ba bum
[LADIES & DARREN]
Bah-dow
[DB]
The bad trait
Will always predominate
Bad trait
Is certain to win
The bad trait
Will always predominate
[ALL]
That is the law of genetics
[DB]
According to Finn
[ADAM]
Bum ba bum ba bum bum ba bum ba bum
[ALL]
Bum ba bum ba bum bum ba bum ba bum
[ADAM]
Bum ba bum bum
[DB, SANDY, SALLY, & DARREN]
The bad trait
Will always predominate
Bad trait
Is certain to win
The bad trait
Will always predominate
[ALL]
That is the law of genetics according to Finn
Bum ba bum bum ba bum bum ba bum ba bum
[DB]
Why is the smart son always the gay son?
[SALLY & SANDY]
Finn's second law of
[SALLY & SANDY & DARREN]
Genetics
[ALL]
(staggered)
Bum ba bum bum ba bum bum ba bum ba bum
Bum ba bum bum ba bum bum ba ba dow!
[DB]
Say your father has a stomach
You are sure to get that stomach
[SANDY & SALLY]
It's a simple fact science
[ADAM & DARREN]
Don't rely on self-reliance
[ALL]
You are sure to get that stomach
So eat, eat, eat
Because the bad trait
Will always predominate
Bad trait
Is certain to win
The bad trait
[ADAM]
Will always predominate
[ALL]
That is the law of genetics
That is the law of genetics according to-
That is the law of genetics according to-
[ADAM]
B-B-B-B-Billy, B-B-B-B-Billy
[ADAM, DARREN, & DB]
B-B-B-B-Billy, B-B-B-B-Billy
[ALL]
B-B-B-B-Billy
B-B-B-B-Billy
B-B-B-B-Billy Finn!
Oh, Billy's law of genetics!