Re: so what was your biggest goof up???
Nothing on that scale for me, but one time I started loosing power and bogging down above about 12mph. I pedal assisted and limped home only to discover I had forgotten to open up the choke. I also broke a chain once without a spare on hand and had to pedal about 8 miles home on an overweight single speed cruiser. I now carry pretty much everything but a spare engine with me and I have an engine at home in the garage.
If it can't be broken I'll find a way!
I'm not lost, I'm exploring!