GSM Scott
Its all well and good put this down to a delayed bmi flight, but that happens, indeed most companies will not allow crew to use staff travel (to position after days off) on a duty day because this is what can and does happen, the cost of positioning them down the day before including hotac is small compared to the knock on effect if it goes wrong, as for bmi they are less likely to cancel a domestic than BA.
No one wants to see GSM go down (apart from a few bitter ex employees) but some of these things are down to them and they can avoid them.