Who said "If I weren't angry, I'd have killed you."?

Charillus (8th–4th century BC). Source: Plutarch, Sayings of Spartans, Charillus 3 (232c).

What is the original Greek?

εἰ μὴ ὠργιζόμην εἶπε κατέκτανον ἄν σε. Translated from the original Greek by Spartan Surfers.

If I weren't angry, I'd have killed you.

Charillus, Plutarch, Sayings of Spartans, Charillus 3 (232c)

The source

"If I weren't angry, I'd have killed you." Charillus said it in Plutarch, Sayings of Spartans, Charillus 3 (232c). Translated from the original Greek by Spartan Surfers.

"εἰ μὴ ὠργιζόμην εἶπε κατέκτανον ἄν σε."

Original Greek, Plutarch, Sayings of Spartans, Charillus 3 (232c). Greek: Bernardakis 1889 (Teubner) via Perseus; To an insolent helot: he would not punish in anger.

Who said it

The Spartans (8th–4th century BC). Laconic sayings from Lycurgus, Leonidas, Dienekes and the mothers of Sparta, recorded by Herodotus and Plutarch.

Questions

Who said "If I weren't angry, I'd have killed you."?: Charillus (8th–4th century BC). Source: Plutarch, Sayings of Spartans, Charillus 3 (232c).
What is the original Greek?: εἰ μὴ ὠργιζόμην εἶπε κατέκτανον ἄν σε. Translated from the original Greek by Spartan Surfers.