I am examining a phenomenon I have noticed in my gaming career in a different light and wanted to get some outside opinions. I have noticed that when players are not engaged in what is going on as far as the group goals or story they will tend to engage in either Stealing or Killing for fun. On the one hand I feel like this is in some ways part of the fundamental experience of TTRPGs, the basic experience of getting to do what you want in an imaginary space.
On the other hand it seems like a predictable behavior that is usually indicative of the player being un-engaged by other situations that may be going on in the game (assuming that the adventure is not just supposed to be the PCs killing and stealing in a particular location. i.e. Dungeon Crawling).
As a GM how do you view this phenomenon in your games?