Okay...so have you ever gone to the toilet and closed the door, but you're not really paying attention to what's on the door. So you've sat down looked at the door to realize there's a massive spider on it. Just sitting there all like 'welp... someone appears to have found me'. Then it like jumps off and becomes some kind of ninja and it either runs towards you or off somehow else and just disappears, never to bee seen or heard from again.

HELLO!! I just thought of this while I watched a grasshopper, contemplating whether I really need to take a piss that bad, or if I could hold it and go lay done and see if it goes away....

It didn't go away... :'(