Daddy's Home: CRUN-CH!

This is a pretty funny comic strip.

But the onomatopoeia bothers me. The CRUN-CH! is in Pete's word bubble, but Pete is obviously not saying it. Further, the CRUN-CH! is unnecessary, as Pete's dialog explains the problem with the muffins perfectly well. And further still, what's with the dash in between CRUN and CH? I'm guessing it's there to denote, um, chewing or something, but it doesn't really do that very well.

Of course, I tend to not be a very big fan of onomatopoeia in general, as it very rarely adds anything of value and is annoyingly hard to spell.