Eyup,
You're probably right (I've not read the rest of this thread yet, but bear with me) - I saw Benn on Saturday & he thought it was 4 years since he'd seen us lot (meaning the Bradford gang) when in fact we all went to Alton Towers in October & he came to our mate's stag do last August.
I think this is all proof that Benn is infact Marty Mcfly & he's been travelling through time for 3 years in addition to the linear timeline.