Salvianus

is a character in Elder Scrolls V: Skyrim.

If you steal from him, he will send out a contract to have you 'taught a lesson'. Must be from Riften as part of the Theives Guild Quest, but unsure if that is correct.

Contract
"Here is the agreed upon amount. I expect you to faithfully carry out my request to teach a lesson to the theif Dragonborn. You need not kill him/her, but I have no qualms about it if you deem it necessary. -- "