Spock: I'm terrified that I’ll lock myself into an interest that I’ll no longer be passionate about in a few years like all the other areas of study I’ve pursued over my life!
Chekov: What would happen if I put a whole bag of flour in the dishwasher?
Chekov: Would it turn into a big pile of dough that gummed up everything, thereby ruining the dishwasher? Or would the dishwasher be able to handle it?
Chekov: I've looked a bunch online and I can't find any examples of someone doing this.
This is something I believe probably happened on the Entiprise at some point.
It was a quiet day (a terrifying concept to everyone in Starfleet) and Chekov is bored so he decides to go around the crew and jokingly ask them if they are the favourite child.
He jokingly goes up to Spock because everyone knows he's an only child and asks him if he's his father's favourite child
Deadpan Spock responds with a firm no.
Years later a confused crew becomes even more confused when they meet Sybok because how the hell is this Crazy emotional Vulcan Sarek's favourite child!
Sybok is amused by this and keeps up the ruse. In memory of his favourite family member.