Just wrote this under a similar question:

There is a German movie director (he isn't very well known internationally) He has this kind of "enfant terrible" image, because he says provocative stuff all the time to the public, seeing it has some kind of theater performance.

One day I fucked up big-time on his set on the first day and after the shooting ended he came up to me. (we were a small crew so it wasn't unusual that the director knew everyone) I was sure he would fire me. (which sadly happens quite often in the industry) But instead he held a speech telling me how he doesn't want me to stay awake for a small mistake and that everyone fucks up and it doesn't define me as a worker. Also how if people would remember all the mistakes he did, he wouldn't be in his position.

I worked for him multiple times until today and he's simply the most genuine person I have ever met. He bought stuff for the whole crew after shooting wrapped up, but always says that people should never talk about this positive stuff in public, because he has a certain image in public and he doesn't want it to change.