The cross from Commons was superb too, hit first time with his right foot and bent in with a delicious, defence-bewildering curl on it.
Just opened in 1964, the rooms were utilitarian, with nice lounges and everything a student might need, being a hike from Commons, Firestone, or Prospect Street.
There was no such restraint from Commons, whose 73rd-minute deflected strike completed Derby's recovery after Chris Cohen had scored for Forest after 57 seconds and Nathan Tyson added a second, from the penalty spot, in the 13th minute.
As the game opened up after the interval, Celtic's midfielder Charlie Mulgrew sent Samaras through the middle of an exposed Dons defence but the Greece striker's shot struck the post before Langfield made a fine save from Commons' angled drive.
In the 10th minute Bitton drove in a pass from Commons but the offside flag was up for Leigh Griffiths, who had shifted to get out of the way.
And it was significant that the liaison committee's chair, Andrew Tyrie, ended the session with a delightfully polite but razor-sharp complaint about the government's failure to keep up with correspondence from Commons select committees.
