This is a slip-up in the section where elliot and jd are in the morbdity and mortality conference talking about elliot necratising faschitis case.

If you look to the right of jd when he is singled out you will see a bag, it will cut back to Dr Kelso, then back to jd no bag, Then back to kelso then back to jd and there is the bag again.

Have fun spotting it.