On your way back to the Cow of Honour, an arm grabs you from one of the rooms along the corridor and and drags you inside.

'What am I bid for this fine beast?' asks a disembodied voice. You look around to see a huge computer with mechanical arms. One arm wields an auctioneer's gavel. The other is still wrapped around your neck.

'A crowd of peanuts!' shouts an unkempt man in his late twenties.

'Two hundred and fifty pounds' screams a ridiculously ugly woman at the front of the crowd.

'A copy of Twinkle, the comic for little girls' pipes a timid little man who looks like a mole.

'Sold to the timid man who looks like a mole for a copy of Twinkle, the comic for little girls.' The auctioneer brings the gavel down with a crash. The mole man then gives you the copy of Twinkle and takes both of your shoes.

'What's going on?' you ask finally.

'This is the part exchange room,' replies the auctioneer. 'You've been part exchanged.' Click here.