head crab pumpkin?

So i had inspiration from the head crab from Half Life. this is a mutated pumpkin that is just like another other, but it is alive and is not friendly. On Halloween it will act as a decoration and will blend in. then it will sneakly latch onto a victims (favors females, but will infect males too) head and kill it, making the pumpkin the new head. it will connect itself to the spine and use the body as a host. from there it will continue its murders until it hits 11 PM. it will retreat into the forest and the hosts stomach will burst out pumpkin seeds to create more head crabish pumpkins. BTW I DID NOT TRY WITH THE VOICE!!!!