Never changes over?

Nope. Being closer to the vendor, they stay awake and move on when their business is concluded. The latter, sleeping half of the line fails to notice and new Glitches move in. Which is what happened here!

Perhaps we need a 'tickle' verb.

@Carl -- oh, okay, now I understand.
@WalruZ -- Ooooh, I absolutely want to be able to tickle other glitchen.

Tickling should totally cause the target to dance!

Dance Glitchen Dance!

Oh YES!!! Tickling would be the perfect trigger for dancing!!! Please, oh please, let the devs hear this!!