Te ipsum non alens, Canes alis.

Not having sufficient for your own support, do you pretend to keep dogs? This was used to be applied to persons whose income, insufficient to supply them with necessaries, was laid out in superfluities; in keeping servants and horses, or in an ostentatious use of gaudy clothes, furniture, or other articles of luxury, unbecoming their circumstances. "Los que cabras no tienen, y cabritos venden, de donde lo vienen?" those who, having no goats, yet sell kids, whence do they get them? is said by the Spaniards, of persons who, having no estates, or known income, yet contrive to live at a great expense.