Sister in law can't get her head round the idea that the ultra I'm going to be doing will be done all at once, no there aren't any stops other than feed stations, no I won't be going home halfway round and coming back later, no I won't stop to sleep, I will keep going from the start until I've reached the finish.

Also, when mentioning my training mileage she commented "oh, so you're doing the event now, just in bits?"

Oh and do I need mention spectators at races shouting "keep them knees up"?