17 Problems Only People Training For The London Marathon Will Understand

7. Your Social Life Starts To Suck

While your friends are out partying, you're at home eating mountains of carbohydrate and prepping for tomorrow's early morning run; don't worry though, you're going to get a medal for it.

6. Raising Money - Lots Of It

Whether having your hairy man-legs waxed or begging for coppers on the high street in a tatty Goofy costume, you're going to have to whore yourself out somehow to reach your fundraising target €” all the while acting like a loan shark around your friends to extract money from them too.