Nice thread I think from personal experience that Pings point about insecurity is the big key here

The fear of loosing or having something taken away is a general theme here in the Fils from things ive seen and heard when someone has experienced a life thats hard and survival dominated they may not even be aware of how frightened they are/have been and it may manifest in a range of behaviour including jealousy mistrust and the ability to lie easily to avoid percieved penalties even if there is no foundation in the moment.

I have also read this is a feature of peoples colonised by the Spanish and considered ok to lie in order to avoid punishment I would rather have to deal with the fear openly expressed which I can chose to understand and support than the loss of trust with lies and inapropriate and compensatory behaviour I will keep looking