I'm not doing this

My wife and daughter entered me for the ballot for the London Marathon. They ask you to make the entry fee a donation even if you don't get chosen. Today the results were announced, and, surprise, I'm not in. Not too bothered, as I'm training for the Lakeland 50 and I'm not someone who feels the London Marathon is some pinnacle of a running career (I actually think it'd be a pain to do). But they do send you this nice jacket in return for your donation - the problem is, when could I ever wear it? "Oh you did the London Marathon, how was it?" "No, I just bought a jacket".