Instead of Under The Influence.
I think that was the original idea, cus in Em's book, on one of those notes, it has a list of songs with Shit On You is the same list as Who Knew, Kill You and others.
I guess that's why Em has 2 verses in it, as it was for his album. I love his verse on UTI but his verses on Shit On You are way better as are the other D12 members' verses, along with the song as the whole.
Once Em's verse finishes on UTI I skip it, whereas I listen to the whole of Shit On You (bar Biz's verses, naturally). Would have made MMLP that little bit better.
I guess he (or Interscope) chose it for Devils Night in the end to create more of a street buzz for that album, with two Em verses it would have been better promotion for an album that would have been less known than MMLP.