Effects of methane in decaying tissues of Zombies ?

[L.H.]

Hello to all the other amateurs of zombie stories.
While writing my Zombie novel (and my very first novel, by the way), I've explored something that no one seems to have envisioned in one of the topics here: what would happen if the methane produced by the decaying tissues of the living dead was ignited?
I've written unusual but explosive side effects, in some scenes!
Perhaps this doesn't follow the usual 'tropes' in zombie stories, but perhaps could it bring some freshness in the domain?
What do some of you think about that?
I'd be interested to know.

I'll read with pleasure your own thoughts about the subject.

L. H. Tide

[Will]

My zombies had a problem with wind - some might call it gas.

But that was played for laughs rather than being serious.