[quote=@Shadow Dragon]
<Snipped quote by Stabby>

How many could they possibly have? If they're jumping from world-to-world, how much time do they have to make connections?
[/quote]

To go jumping from world to world, you need connections if not some kind of small power or device.
And if they start out without connections, you can bet that they'll either die or gain them in their travels.
There are also the cases where they become mad in their travels too.
Either way, I try and avoid messing with crazy people.