I think my worst day to get motivated for a run has been the Sunday after my second failed Bob Graham attempt ('monsoon over Bowfell' said in a Reginald Perrin voice

) - we'd camped over and arranged to walk up over Haystacks with friends on the Sunday morning meaning that I got home quite late, really quite knackered (zero sleep on Friday night as I'd been running), aching legs and feet and to cap it all 'one or two' problems at home when I got there. I still stumbled out for a run though.... albeit a short one!