Passing sharp objects in hand among Hindus

I have noticed that many Hindus avoid passing sharp objects such as knives or scissors from hand to hand. The person will rather place it on the table and the other person takes it from the table. My family members also follow this. I am curious if this is just a superstition or it is actually mentioned in our Shastras. And what is the reason for doing so? My parents are not able to answer when I asked them. What are your views about this?