What's the metaphor?

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The Toaster

A silver-scaled dragon with jaws flaming red
sits at my elbow and toasts my bread.
I hand him fat slices, and then, one by one,
He hands them back when he sees they are done.

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1. What two things are beng compared in this poem?

Answer: A dragon and a toaster.

2. What do the two things have in common?

Answer: they both have the ability to toast bread.

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Those are the questions I have to answer using the poem above.
Can someone please check #2.
I need to know is that the only thing it has in common or are there others that I've missed.

Thank you.

2 answers

nope, they both have "mouths"; they both have "flame" ; a dragon, like a toaster, can be silver.
You might want to check this site for an addition.

http://www.jiskha.com/display.cgi?id=1231914663