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.

A kiwi tenant saw their grape landlord outside pacing back and forth on the front lawn. Kiwi: 'What are you doing?' Grape: 'Just ... the rent!'