The red mist descended for Labour’s Jim Murphy as he saw SNP MP Pete Wishart counting Scottish Labour MPs taking part in the spare room subsidy vote this afternoon.

Just been told to f*** off aggressively again and again by @jimmurphymp in my face. And he goes on about online abuse.

— Pete Wishart (@PeteWishart) February 26, 2014

Guido is told Murphy approached Wishart and told him to: “f**k off, f**k off, f**k off”. SNP sources are bewildered as to what might have sparked Murphy’s f-bombing because the pair have “not had words today, not this week, not this month”. Take it outside, lads…