[Harry tries to unbuckle the strap the Doctor is wearing]
Harry, don't touch it! Open that buckle and you'll be blown to kingdom come.
You mean it's booby-trapped?
These buckles can't be opened until the Cybermen beam the release signal.
Harry, [sits up] were you trying to undo this?
Well, naturally.
Did you make the rocks fall, Harry?
Well, I suppose I must have done that, yes...
...Yes, yes... [starts laughing, and then roars] HARRY SULLIVAN IS AN IMBECILE!!!
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