After quite a hiatus, I found a real, pukka, Invisibules comic inside my head. Just like the olden days!

— Footnote
Purists might put the pause between the two tees, viz. glot-tal, but I imagine that’s why that Invisibulean still needs to practise. I can only report what I observe.

↓ Transcript
1. {What are you doing?} [Im practising my glo]
2.
3.
4.
5.
6. [ttal stop.]