Most Frontiersman do not like the humma, and even their fellow Rim dwellers are not overly fond of them. That is fine with the humma, because they do not care for the other races either. Humma are rude, crude, lewd, pushy, and arrogant. The only races they enjoy working with are the yazirians (humma admired their battle rage) and osakar (because no one likes them either).

The hummarin view of the ifshnit is complicated. In the early days of contact between these races the ifshnit, in the agency of the Capellan Free Merchants, the races readily traded. The humma desirous of new technology and motivated to boot strap themselves into space while the CFM were interested in expanding new markets. The market that the humma represented was so strong that the CFM established an enclave on the planet Larg in the Fokrik system to better serve their operations. The aggressive exploitation by the ifshnit in Fokrik led to their undoing. Willing to sell advance military technology to any buye, rivals attacked the CFM and a short interplanetary war resulted. The CFM lost heavily in material (they were forced to abondon their enclave on Larg) but the humma lost heavily in casualties. With the osakar playing peace makers the war ended and relations stablized.

Only one other time has a hummarin house dared to attack a CFM vessel trading with a rival. On that occassion the CFM not only struck back with extreme prejudice but they also sold at whole sale prices arms, weapons, and equipment to the rivals. Between the reprisal by the CFM and the rival's "sensing food in the larder" the offending house was wiped out. Since that time the humma have noted the object lesson well and CFM vessels are left alone.

There is a second sentient race that co-evolved with the humma, the boon'sheh. The humma being humma have hounded this race to near extinction. Their name for the boon'sheh is indicative of the humma attitude toward them, beck (it translates literally as excriment). Largely seen as lacking any status for their inability to successfully fight back most humma are largely ambivelent toward the boon'sheh. They were driven into the most inhospitable locals on the planet Hum then most were forcibly relocated to Larg in the quest to claim resources to fuel the growing space industry.

A few houses and lineages believe that the boon'sheh should just be exterminated once and for all but there may be economic motives for this attitude as even now the perservations on Larg have been shown to harbour important natural resources. The Highest One has legislated protections for them due to pressure from the osakar and the ifshnit.