I've been tested many times if am really trustworthy in even small matters.  Have it not been for my self-control, I could have fallen into tempting situations.  Gaining trust of other people is doing something in good faith- no selfish motive or intention to take advantage of something close to ones' control. 

My landlord entrusted to me his 3 sacks of rice for safekeeping in my flat while flood waters worst struck my country's capital in 40 years.  I've been living in the central business district for 13 years and it was a terrible and horrible experience... I asked his permission to cook some for his tenants who had nothing to cook and eat during the stormy situation.  I could have gotten as much as I could but  my ever distinct self-control prevailed.  He asked his nephew to get the rice from my flat this afternoon and told me that I get some more of the staple rice.  It would be impolite for me to decline his request so I gave in to get roughly a kilo of the rice.  I told his nephew that I got enough and he has yet to recover his losses of around 19 sacks of rice during the flooding.  His nephew smiled and thanked me for being so nice to protect his uncle's rice.

To me, it was a relief to being able to protect the last availble sacks of rice for my landlord's source of living.  That simple gesture has humbled me to the extent of receiving unexpected tokens from my landlord's family and accolades from my colleagues at work.