To be honest, I was quite amused by most of your replies but then I guess tht lady Karma made sure I got what I deserved haha
Jz came bck frm HK and two days ago I wz doing some streets there. While I was adjusting my neck strap (means I didn't have my strap on that time) and sudd out of nowhere, this guy on a bike knocks my arm frm behind, causing me to drop my 50D+17-40 :O
I saw my life flash before my eyes when it actually bounced on the floor (double the impact)
But it turned out to be okay despite a graze on the hood which I guessed absorbed most of the impact

immediately bought a handstrap the next day so that the same thing wouldn't happen again