Legend would have it that many of them would magically vanish when set upon by a fighty ship. Then there are those who might enjoy a little bit of retribution.
But why would you turn up in an unarmed vessel, unless that's all that you had in the area at the time (and wanted to get the feel of "must do it now")? I just jumped into my Regular (TM) Python (includes guns, armour and shields), packed it full of economy class cabins and flew on over. Sure it took 20 jumps and I can only carry 96 passengers at a time but it's rescued more than two thousand refugees from those burning stations. That's a perfectly good build for surviving against most odds, plus I got a few million space bucks and the feel good factor for my trouble.