I think this one is more along of the lines of someone wanting to steal some cash from someone using an ATM, only gets $50.00, get's pissed and offs him, runs out of town in a hurry, dumps him along the way and keeps on going.
Disagree.
There are no fat dumpy guys abducted. They have money too.
That's my guess. Thieves and muggers tend to be drug addicts, and they get angry if the victim doesn't have enough on him to buy a fix.
A friend of mine used to keep a $20 bill in his shoe, so he could give a mugger his wallet and still have the cash to get home. I've never been that paranoid myself, but it seems to be the way things are in certain parts of the world.