Send Off or Sent Off

I'm worried; my tutor group, my Head of Department and the Head's PA are vaguely secretly planning my 'send-off'. They are a concerning concoction of people ... my tutor group have many strange ideas (such as miming getting out of cardboard boxes for fun), my Head of Department is 'imaginative' to say the least and the Head's PA is exceptionally efficient meaning that the whole thing will actually happen. Two months in an icy wasteland might well be the best place after whatever they come up with!