<Reus?> Item precepit Dominus discipulis suis, ut comederent et biberent ea, que apud auditores suos erant. Non autem iussit ut de domibus suis dominos eicerent et de suis rebus exspoliarent. Non facile invenias qui tales hospites libenter suscipiat. Mus in pera, ignis in sinu, serpens in gremio male suos remunant hospites. Vnde in prouerbiis dicitur: Qui serpentem in suo sinu mittit, percutietur ab eo.

Again the Lord commanded his disciples that they eat and drink those thing that their listeners offered them.  He did not order them to throw them out of their homes and rob them of their goods.  You will not easily find hosts who readily receive such guests. A mouse in a bag, a fire in a bosom, and a snake in a breast badly repays his guest.  Hence the proverb says:  Who puts a serpent in his breast is bitten by it <Odo of Cheriton, Aesop's Fables, Perry number 176>

 

Huguccio to C.13 s.v. in domo nostra:  "hoc non bene proponunt, set intuitu decimationis prediorum quam illi habebant in parrochia actorum uocant eos 'domum suam'."  (Lons-le-Saunier 16, fol. 242r, Vat. lat. 2280, fol. 198r)