Change One Word

Easy. So the first poster, I, probably, would post a sentence. It should be complex, and preferably compound.
Then, the next person posts the same sentence, but with one changed word.

Ex:
Person A: You seemed exhausted, and fell asleep on my shoulder after the walk.
Person B: You seemed exhausted, and fell ill on my shoulder after the walk.
Person C: You seemed ugly, and fell ill on my shoulder after the walk.
Person D: You seemed ugly, and fell ill on my shoulder after the fart.

And so on.

Here it starts:
The teacher was explaining an interesting lesson; however, the students soon fell asleep.

The teacher was explaining an interesting lesson; however, the students soon fell asleep.
The teacher was yelling an interesting lesson; however, the students soon fell asleep.

The teacher was yelling an interesting lesson; however, the students soon fell asleep.
The teacher was yelling an interesting lesson; however, the students soon fell angry.

The teacher was yelling an interesting lesson; however, the students soon fell angry.
The teacher was yelling an interesting lesson; however, the squirrels soon fell angry.

The teacher was yelling an interesting lesson; however, the squirrels soon fell angry.
The teacher was yelling an interesting lesson; however, the squirrels soon became angry.

The teacher was yelling an interesting lesson; however, the squirrels soon became angry.

The monkey was yelling an interesting lesson; however, the squirrels soon became angry.

The monkey was yelling an interesting lesson; however, the squirrels soon became angry.
Uncle Monkey was yelling an interesting lesson; however, the squirrels soon became angry.

Uncle Monkey was yelling an interesting lesson; however, the squirrels soon became angry.
Uncle Monkey was yelling a boring lesson; however, the squirrels soon became angry.

Uncle Monkey was yelling a boring lesson; however, the squirrels soon became angry.
Uncle Monkey was screaming a boring lesson; however, the squirrels soon became angry.

Uncle Monkey was screaming a boring song; however, the squirrels soon became angry.

Uncle Monkey was screaming a boring song; however, the squirrels soon became angry.
Uncle Monkey was screaming a boring song; however, the squirrels soon became stunned.

Uncle Monkey was screaming a boring song; however, the squirrels soon became stunned.
Uncle Monkey was screaming a screeching song; however, the squirrels soon became stunned.

Uncle Monkey was screaming a screeching song; however, the squirrels soon became stunned.

Uncle Monkey was screaming a screeching lullaby; however, the squirrels soon became stunned.

Uncle Monkey was screaming a screeching lullaby; however, the squirrels soon became stunned.
Uncle Monkey was screaming a screeching lullaby; thus, the squirrels soon became stunned.

Uncle Monkey was screaming a screeching lullaby; thus, the squirrels soon became stunned.
Uncle Monkey was screaming a screeching lullaby; thus, the birds soon became stunned.

Uncle Monkey was screaming a screeching lullaby; thus, the birds soon became stunned.
Uncle Monkey was screaming a screeching lullaby; thus, the birds poop became stunned.

Uncle Monkey was screaming a screeching lullaby; thus, the birds poop became stunned.
Uncle Monkey was asking a screeching lullaby; thus, the birds poop became stunned.

Uncle Monkey was asking a screeching lullaby; thus, the birds poop became stunned.
Uncle Monkey was asking a screeching lullaby; thus, the birds poop became dirty.

Uncle Monkey was asking a screeching lullaby; thus, the birds poop became dirty.
Uncle Caillou was asking a screeching lullaby; thus, the birds poop became dirty.

Uncle Caillou was asking a screeching lullaby; thus, the birds poop became dirty.
Uncle Caillou was asking for screeching lullabies; thus, the birds poop became dirty.

Uncle Caillou was asking for screeching lullabies; thus, the birds poop became dirty.
Mister Caillou was asking for screeching lullabies; thus, the birds poop became dirty.