Dragonflies are sloppy eaters. They catch a lot of annoying insects like mosquitos and flies, which is commendable, but you don't want to see them eat, really.
If you do, however, here's one with the bum of a black fly sticking out of its mouth. One of the fly's legs is dangling off its eye:
Olympus Stylus 1s, 42mm, ISO200, f5.6, 1/80s
And yes, when taking such a photo at this focal length you can hear it eat as well.
Don't say I didn't warn you!