I have only got 2 RANDOMS in like 72 hours of botting. I try to get them purpously so I can get straight experience. I'm also doing soul wars and there are no RANDOMS there. I leave soulwars just to get one.
Currently running 2 bots. One is at 70 mining and botting to 99, and the other is 76 WC, and botting to 99. Botting iron ore at Rimmington, and botting ivys at Falador.