This disallows several af features, notably killing and yanking messages in the buffer.
The IRS specifically disallows deducting personal expenses as business tax deductions.
The school of Shammai disallows it; but the school of Hillel allows it," &c. In the Gemara, the decisions of the Mishnah are not only discussed, explained or developed, but all kinds of additional matter are suggested by them.
It also usually disallows business expenses that are disproportionately high because of personal convenience or self-indulgence.