Scare My Enemy

Scare My Enemy is one of the radiant quests in The Elder Scrolls V: Skyrim.

Walkthrough
Depending on the person who witnesses the assault, the Dragonborn may be asked to either frighten or actually kill someone. In either case, the contact is initiated via a letter which is received by courier, e.g. Letter from Skulvar Sable-Hilt.

Meet with the person who sent the letter about a job involving violence
After receiving the letter, the Dragonborn must go see the sender and receive further instructions.

Assault their enemy but don't kill him/her OR Assault their enemy, killing him/her will earn bonus pay
The actual deed to be done varies with the sender of the letter.

Report success to the person who sent the letter
Once the deed has been carried out, the Dragonborn can return to the sender for a reward.

Erschreckt meinen Feind!