my budgie divebombed my breakfast. help.

i have a very smart budgie, Kiwi, and he's very keen on flying to me and resting on my shoulder the second i wake up. i was eating my bowl of cereal, when the menace swoops from one of his canonballs DIRECTLY into my bowl of cereal milk. he's cleaning himself, and i spritzed him with water to encourage this. he didnt even get stressed. im so confused and concerned about whether or not he'll get sick, as it was a mix of cocoa pebbles and rice krispy cereal. 

this is completely new, too. we've been in this routine for nearly 4 years now, and he's never pulled a stunt like this. it almost feels like it was on purpose. but thats not the point. is my uber cute little buddy gonna be okay?

edit : kiwi is all good, i think!! he's cleaning himself and eating normally, and he didn't pull that stunt again, so i think he learned LMAO

edit: ITS BEEN A COUPLE OF WEEKS hes all good ^_^ vet said it wasnt enough of anything to him