You know that feeling when you embark on something that you know is probably going to go horribly wrong but off you go anyway, teeth gritted. This is just such an event.
When I was ten and in the Cubs (jnr. scouts for the uninitiated) some likely lad bet me his collection of marbles that I couldn’t cycle down the top of the wall separating our church hall from the other church on the far side. Stupidly I went for it got down a short distance and promptly fell off onto the gravel on our side and smashed my right arm. If I’d fallen on the side of the “Other church” I’d have been grand ’cause they had grass. Very sore but I got the marbles!