Barbara Wright:  I was thinking ...
Ian Chesterton: Yes ?
Dr. Who: Well , yes , yes ? Anything may help .
Barbara Wright: Do you think something could have got into the ship ...
Dr. Who: No , no , no .
Barbara Wright: ... when the doors were open ?
Dr. Who: No , it 's ridiculous .
Ian Chesterton: What do you mean ? An animal or a man or something ?
Barbara Wright: Yes .
Dr. Who: It 's not very logical , is it ? Hmm ?
Barbara Wright: Or another intelligence .
Dr. Who: Well , as I said , it 's not very logical .
Barbara Wright: No , it is n't . But does it have to be ? I mean , things are n't always very logical , are they ? It 's just that _ one _ 's been through so much , I 've ...
Dr. Who: I 've been very patient with you , Miss Wright , and really , there 's no more time for these absurd theories .