Just a random thought....
As an adventurer I walk into the guild (The first day you can) I talk to the guild master who "I've met for the very first time" and say "Hey can you upgrade my tent" he looks at my upgraded tent and says
A) Actually you have a pretty nice tent yourself I don't think I could make something better then that If I tried
B) Did you steal that from my back room? I put numbers on them you know?
C) Now what do we have here, I recognize that work that's one of mine how did you get it, I don't remember giving you one...
D) Now what do we have here, I recognize that work that's one of mine how did you get it, I Know I Didn't give it to you, where did you get it?
Like I said random thoughts, would be funny to see in game though