Here is the fragment again:

Hissing and spitting like an angry alligator caught by its tail.

You correctly identified the fragment as a participle phrase. Hissing, the present participle that begins the phrase, is the clue.

To fix this fragment, you could add a subject and verb, like this:

The old coffee maker was hissing and spitting like an angry alligator caught by its tail.

Or you could use Punctuation Rule 3:

Main Clause + , + Participle Phrase.

The correction would look like this:

The old coffee maker brewed Christine's breakfast, hissing and spitting like an angry alligator caught by its tail.

Or you could use Punctuation Rule 4:

Participle Phrase + , + Main Clause.

And the correction would look like this:

Hissing and spitting like an angry alligator caught by its tail, the old coffee maker brewed Christine's breakfast.

Enjoy the honor!

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