Well that went well.... not.
Just felt too hard. Laura said I'd done 5 mins. I thought I'd done 10 hours. Laura said I'd done ten minutes. I felt like it was two weeks.... so I walked the rest... when Laura said there was only two minutes to go I turned her off.
Will try again tomorrow given that I barely ran at all.... but Laura will stay at home and I'll use my own music. Off to drown my sorrows in wine and be very disappointed in myself at failing.
This will not beat me.