A person who intends to steal is not technically yet a "thief" if he hasn't taken anything yet. But it could be argued that this person needs educated about boundaries, "what's yours is yours-mine is mine", and personal ethics that keep most people from acting on the urge to steal. Some religious leaders might say that a person who intends to steal is one who "covets" -- meaning, they want what someone else has so much that they are willing to steal to get it. Coveting often comes from feelings of jealousy, or from feeling entitled to have things even if you haven't worked for them. So, a person like this could be called a person who jealously covets other people's property and who may become a future thief.
Psychologists would say that this kind of person needs to work on impulse control -- controlling ones impulses to do wrongful or immature actions that seem to fill a temporary need.
A person prone to steal is commonly referred to as a thief or a kleptomaniac, depending on the nature and motive behind their actions.
A person who attacks and robs ships is typically referred to as a "pirate." Pirates often operate in maritime areas, seeking to steal goods and valuables from vessels on the open sea.
fudu
A person who commits a robbery is known as a robber or a thief.
A thief or dishonest person is commonly referred to as a "criminal" or "fraudster."
A person prone to steal is commonly referred to as a thief or a kleptomaniac, depending on the nature and motive behind their actions.
Kidnapping is the act of unlawfully taking someone against their will.
A person who makes of
collecter
A person who looks on the gloomy side of things is pessimistic.
A person who builds things out of stone is called a stonemason or a stoneworker.
A person who hoards things that you have would be called..."you." Or whatever your name is.
You could call them generous or a recipient or a patron.
An idiot.
A snuggler
Smart
A sybarite.