I lick the nutella off the knife and then stick it back in the jar knowing that my family will eat from the same jar that has my saliva all over.
What is the purpose of you doing something like this anyway?
I feel like I'm contributing something to this world.
It's very disgusting to try and force people to consume food that has had your saliva all over it. Have you thought about just buying your own food so that no one else has to share with you?
It's just a jar not a baby bottle.
If you family members knew about this they would most likely be pretty upset. Not to mention, any sort of sickness that you may have would without a doubt be spread to them if you are consistently doing this.