used to be you could mine into a jetcan, but these days, what with ore thieves and can tippers, its just not worth it - it does happen in 0.0, but thats only because mining gangs usually have dps support... lots of it.. along with the odd indy or 3.. but if your going to mine in high sec, then use cargo expanders and dock/unload each time you have a cargo load, just be sure to bookmark your mining spot so you can warp back without too much hassle... there are lots of corps in 0.0 that need miners though i will say now, certain alliances do tend to prey on the 'niaive' and lure players out in order to gank them .. most people have heard of a certain 'swarm of goons' who seem to think that kind of thing is fun...