I have seen this happen a few times in my career however the bias against ugliness is so ingrained there's no possible way of bypassing it. I think the current

I have seen this happen a few times in my career however the bias against ugliness is so ingrained there's no possible way of bypassing it. I think the current consensus is that exclusion based on physical characteristics is ethical because it is a very natural behaviour. I don't really believe this but it is what it is.