Emilia, an abbess in Epheus, is protecting the Syracusan twins within
And thereof came it that the man was mad.
The venom clamours of a jealous woman
Poisons more deadly than a mad dog's tooth.
It seems his sleeps were hinder'd by thy railing,
And therefore comes it that his head is light.
Thou say'st his meat was sauced with thy upbraidings:
Unquiet meals make ill digestions;
Thereof the raging fire of fever bred;
And what's a fever but a fit of madness?
Thou say'st his sports were hinderd by thy brawls:
Sweet recreation barr'd, what doth ensue
But moody and dull melancholy,
Kinsman to grim and comfortless despair,
And at her heels a huge infectious troop
Of pale distemperatures and foes to life?
In food, in sport and life-preserving rest
To be disturb'd, would mad or man or beast:
The consequence is then thy jealous fits
Have scared thy husband from the use of wits.
William Shakespeare The Comedy of Errors Act 5 sc.1 ll.69-87