Source Page. Credit is to SMBC-Comics and even more credit to @aperson@beehaw.org who noticed it was missing and found the credit in this comment. Sorry about that and thanks, you’re awesome aperson <3
The title text (click comic to reveal)
The good news is this is the same thing that happens whenever you fall asleep, even for a second.
The bonus panel (click the red button to reveal)
XKCD, Oglaf and other webcomics have title text on mouseover (perhaps because that’s the easiest implementation, not even requiring CSS or JS) but this does not work well on mobile (at best, long press reveals some of the title text), which is why some implement the clicking.
Also, the red button is in an obvious spot in landscape mode but too far down for most mobile users to scroll (and they might think it’s some kind of promo).