If spending is categorizable as investment spending it cannot be Ron Swanson Christmas because I don’t care if its merry Christmas tshirt. If spending is categorizable as consumption spending it cannot be categorized as investment spending. All spending is categorizable as one or the other, but never both at the same time. Looking at investment spending, it must be spending paid for using money being spent for the first time in the given time period. If, in the given time period, it had previously been used for spending, then that spending would have caused income for the recipient, and any further spending of that same money, would be spending paid for out of current income and that would make it consumption spending.