A Death World character can select Jaded as a part of his Home World package. This prevents him from taking Insanity Points (IP) from any source that is not a Terror of the Warp. From reading over the rules for a description of what a Terror of the Warp is, I've seen that any test against such that delivers IP is also going to grant Corruption Points (CP). Since this appears to be the only way for a Jaded character to gain IP, how can such a character start with IP but no CP? Are there other sources of IP that Jaded doesn't protect from that don't inflict CP?
As an example, consider a Death World character that selects Jaded and takes the Stubjack Birthright which gives him 1d5 IP. Would it be reasonable for this character to take 1d5 CP instead of the IP?