My only crash was on one of my first bikes when I was 16...(1950)...

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A 98 cc Sun 2-stroke...

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I had removed the rear wheel for some reason, (probably a puncture), and when I put the wheel back in the frame I forgot to replace the rear brake torque arm...

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So...
The first time I applied the rear brake, the brake drum rotated and locked up the back brake and tore the wheel out of the frame.
The bike finished up as a mono-cycle and I was firmly planted in the road....

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..(I think I cried a little at the time...)

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I've been very careful ever since...

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...54 years clean licence, no more accidents...

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Paul.
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.