Calculated Risk!

To explain the role of calculated risk in my life, here is an incident that happened few days ago. I bought a bluetooth headset, brought it home and had to open the package.
There is a knife in the kitchen, there are scissors in the room. The kitchen is nearer and I head to the kitchen...I start cutting the plastic packing.. It is a bit risky using a knife..

As a recap, I once(2007) was opening a parcel with the knife and used a wrong angle which made me end up with a cut finger and the laziness to visit a doctor rendered me with a crooked(minor) finger permanently...

Anyway, I remembered this incident and thought I must be careful. So, without putting much pressure, and taking care of all the angles, I try to cut open the package... And yet, I eventually 'cut' my finger(I ended up with a scratch and the bleeding stopped in few mins).. But the fact is, I was 'aware' I was doing a stupid thing... I took all care to 'minimize' the risk... I had a choice of scissors.. But no, I had to use the knife..

The same thing applies to my other aspects of life. I have been asked a 100 times by my family, some relatives and some friends as to why I do the risky adventures (rock climbing, skydiving, etc).. It all comes down to Calculated risk.. where you calculate how safe it is, probability of failure, etc.. And to minimize the chances of injury or unsafe situations...