I know we've discussed this before but here is my most common conversation at work this week.
'Is it your run this weekend?' 'Yes'
'What is it again a half marathon?' 'No, its a marathon'
'Oh, the London Marathon?' 'No, that's next week, I'm doing Manchester'
'Oh, Manchester......how far is that then?' [in my most patient voice] 'Its 26.2 miles, the same as London, all marathons are the same distance.'
Hopefully after Sunday at least I won't have to have that other tedious conversation about running when you get asked if you've done a marathon and if you say no they presume you are not a proper runner.