Recent experience
I have been on a couple of flights with deportees recently, in fact the last was on Monday. Both, and talking to the immigration man rather consistently, have the person surrounded by the officials in the back rows and the deportee proceeds to scream and moan at the top of their voice in the hope that they will be offloaded.
It is really unsettling to the passengers as in the case on Monday it took 15 mins before push back and 20 mins to take off, only once airborne does the individual shut up.
They have to go of course, but there has to be a better way to get them out, in my view scheduled flights should not be the way!