The best thieves never get caught. Let's talk about how they do it . . . yeah, I know what you are thinking:
WTF does this have to do with trading?
Bear with me.
The best thieves make it easy for themselves. If they come across a house with a "beware of dog sign", they move on to the next house. If a car door is locked, they'll move on and quickly find the car that is unlocked.