My family has stayed the same age for decades, Yet we've watched the world grow older around us. One of us chases donuts, One keeps us all together, One chases trouble, One chases wisdom, And one rarely says a word. Though our skin isn't a natural shade, Millions recognize us at a glance. Who are we?

A small, young, or lesser version of a tab?

I use my beam to keep sailors safe, away from rocky shoals. If my warning is ignored, davy jones scores a gooooooaaaaaaallllll!

I buzz until you slap the air, then vanish as if I weren’t there. You swear you’ve won the little fight . . . until I visit later that night.

I usually begin with an introduction, but many a student wishes I’d never begun at all.