This *just* happened.
Joey seemingly has a tiny spot of dried poop on the top of his beak - not sure how it got there.
The Boy just asked him if he could try and get it off, to which Joey shook his head "no".
He then asked him if he liked it that way, to which Joey shook his head "yes".
Both times, he shook his head a large number of times.
Probably purely coincidental but very very funny!