Two number of fork`s claw create a very sharp edge and by a joint has a motion like a scissor.
Therefore, the fork can convert to the scissor and vice versa ( with a holder).
Risk & challenges:
1- Is this system harmful? No
2- Is this system has performance like a scissor? Yes
1- Can this system change its shape easily? Yes
2- Can this system half a stake in one move? yes only one cut is enough.