Let me clarify.
In my experience and in the experience of others I have discussed this very subject with, it does not generally seem to be a problem with the male. I have had a single male with a few females and have had a female slug out here and there. The thing is, there is never any order it happens in. Meaning it is never only the first or last or in the middle. Not exactly scientific, but it is what I have experienced and concluded.