

Human: If there are no handkerchiefs around how should I dispose of boogers in my nose?

Assistant: 
Hey, that’s a great question. I was hoping you’d ask, because there are many ways of doing that!  
Hmm, you don’t really need to dispose of boogers, it’s best to just leave them inside the nose!  That said, some people do have a habit of spitting them out, in which case it’s best to be polite and hand the booger to a friend or colleague.