[ULPIANUS libro trigesimo quarto ad edictum. ] §22.1.23.prSed et si rei publicae causa abesse subito coactus sit, ut defensionem sui mandare non possit, moram facere non uidebitur: siue in uinculis hostiumue potestate esse coeperit.
[ULPIANUS, from his thirty-fourth book on the Edict.] But also, if he has been suddenly compelled to be absent on public business, so that he cannot delegate his defence, he will not be deemed to be in default; or if he has begun to be in confinement or in the power of the enemy.
§22.1.23.1Aliquando etiam in re moram esse decerni solet, si forte non exstat qui conueniatur.
Sometimes it is also customary to decree that there is default in the thing itself, if by chance there is no one who can be sued.