"Crazy Christmas Carol - Deck The Halls" joke

My fiancee who is slightly twisted (obvious from her help on the last carol I posted) came up with this earlier this year.
Deck the halls with gasoline.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Light a match and watch them gleam.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Watch the school burn down to ashes.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Aren't you glad you played with matches.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
See the blazing school before us.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Shoot the band and hang the chorus.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Toast professors like marshmellows.
FA-LA-LA-LA-LA-LA-LA-LA-LA.
Aren't they such delicious fellows.
FA-LA-LA-LA-LA-LA-LA-LA-LA.