There is an Earwig in My Facecloth!

Ugh, well actually it was in John's, but that's right beside mine. I hate earwigs. Can't figure out what use they are at all. Do they eat mosquitoes? Are they food for bats? What is the great plan for earwigs? Out photographing early this morning and guess who was in the nasturtium. Pincher's ready. Yup, my favourite critter. Please someone; tell me why we need earwigs.

Earwig in my nasturtium