|Giant seaside earwig, Anisolabis maritima|
The females lay their eggs in cracks or burrows and stand guard over them. The sturdy pincers at the end of the abdomen can deliver a nasty pinch. When I got too close, this one raised them straight up towards me, in a threat gesture. (The males do not stand guard, but run when they notice us. Their pincers are curved strongly inward, almost forming a circle.)
I kept my fingers well away.
Three more days until Rock Flipping Day!