But he that touches me, (hands off! I cry, —
Avaunt, and at your peril come not nigh!)
Shall for his pains be chaunted up and down,
The jest and byeword of a chuckling Town.

[At ille,
Qui me conmorit (melius non tangere, clamo),
Fiebit et insignis tota cantabitur urbe.]

Horace (65-8 BC) Roman poet, satirist, soldier, politician [Quintus Horatius Flaccus]

Satires [Saturae, Sermones], Book 2, # 1, “Sunt quibus in Satira,” l. 44ff (2.2.44-46) (30 BC) [tr. Howes (1845)]
    (Source)

On the dangers of antagonizing a satirist.

(Source (Latin)). Alternate translations:

[...] that none woulde worke me wo.
But worke they doo, but who so does, though he be divelyshe fell,
I blason farre and nere his armes, and wanton touches tell.
He may go howle, and pule for wo, the citizens will scorn hym,
And cause him wyshe full many a tyme, his damme had never borne hym.
[tr. Drant (1567)]

And none bereave
The peace I seek. But if there do, believe
Me they will rew't, when with my keen Stile stung,
Through the whole town they shall in pomp be sung.
[tr. Fanshawe; ed. Brome (1666)]

Let none hurt Peaceful Me with envious Tongue,
For if he does, He shall repent the wrong:
The warning's fair, his Vices shall be shown,
And Life expos'd to all the Cens'ring Town.
[tr. Creech (1684)]

But who provokes me, or attacks my fame,
"Better not touch me, friend," I loud exclaim,
His eyes shall weep the folly of his tongue.
By laughing crowds in rueful ballad sung.
[tr. Francis (1747)]

But that man who shall provoke me (I give notice, that it is better not to touch me) shall weep [his folly], and as a notorious character shall be sung through all the streets of Rome.
[tr. Smart/Buckley (1853)]

But he who shall have once provoked me -- 'twill be better that he touch me not, I cry -- shall rue it, and, become notorious, shall be the theme of jest, through all the town.
[tr. Millington (1870)]

But should one seek
To quarrel with me, you shall hear him shriek:
Don't say I gave no warning: up and down
He shall be trolled and chorused through the town.
[tr. Conington (1874)]

But if one stir me up ("Better not touch me!" I shout), he shall smart for it and have his name sung up and down the town.
[tr. Fairclough (Loeb) (1926)]

But the man who provokes me will weep (HANDS OFF! I WARN YOU)
and his name will be widely rehearsed all over town.
[tr. Palmer Bovie (1959)]

But any guy
who gives me any trouble (my motto is “Hands off!”)
will become a tearful celebrity, sung about all over town.
[tr. Fuchs (1977)]

But attack -- it’s better not to, believe me -- and live
To regret it, your name paraded all over Rome!
[tr. Raffel (1983)]

But he who attacks me (O I warn you!
keep your hands to yourself!)
will have cause enough for weeping.
He will be pointed out and ridiculed
by everyone in Rome.
[tr. Alexander (1999)]

"Hands off" is my motto:
anybody who gives me any trouble, he'll be
swiftly famous for his pain and snuffling.
[tr. Matthews (2002)]

But whoever stirs me up (better keep your distance, I’m telling you!)
will be sorry; he’ll become a thing of derision throughout the city.
[tr. Rudd (2005 ed.)]

But he
Who provokes me (better not touch, I cry!) will suffer,
And his blemishes will be sung throughout the City.
[tr. Kline (2015)]