Although in/out works just fine (for me, anyway) for those who want a more general "phenome-y" option, I think venom should work- but you would probably need something like Lionfish's "venom cloud".
Not sure how well this would work, though.... I heard that venom does not work on the same specie. I personally think that is silly- what happens if a baby bot is so mutated that it little resembles the original? We need automatic specie forking...