Last M/C crash I witnessed, was a young 'yute in front of my house late at night... roaring up and down the street constantly on a crotch rocket; until we heard a crack/thud out front.

His helmet came off his head (chinstrap not fastened) and he ended up smacking his melon on the asphalt. Died right there. Hosed the blood down the gutter later in the morning when day came.

Very sad.