What Is It Like to Be a Hermit Crab?

Nagel is wrong; I know precisely what it is like to be a hermit crab during the brief, naked moment wherein they change shells when I click on the hamburger menu on Lichess mobile to click abort game because I just played e4 and this bum isn't moving—but maybe they move now, as the menu covers my screen, and I’ll hemorrage a second or two and start on the back foot.