Listening intently, Bob's expression is neutral as he watches John's. He knows that not everybody's the same and that's more than alright with him. His own guilt at having not seen his mum as much as he should have is a strange one, sitting somewhere at the back of his mind. He's done a good job so far of filling his time with all sorts of people to keep it there.

But there's no judgement in his expression because there isn't any. Doesn't make a difference to him if the other man misses where he's from or not. He doesn't know John, a near on stranger, well enough to be doing any of that.

"'s fair enough, mate. Nah, just dickhead mates and family questioning my life choices. Standard. Rest of it doesn't matter." Even if his car is a close contender to things he misses the most. But the comment about time-travel grabs at his curiosity.

"...you say time-travelling ship?"