Quiet, you! GROWN-UPS are talking.
It is interesting you should bring up this conundrum! I happen to have in my files a speculative screenplay, a "fan-fiction" if you will, dealing with this very topic! It is written by Rottingbeef.
[2306:2009'24] <Beeftop> [The setting is the men's restroom of the bridge. Picard is washing his hands as Riker enters, beads of perspiration on his forehead as he has a look of hurried consternation.]
[2306:2009'24] <Beeftop> PICARD: "Ah, Number 1, I see you are here to do a number two, yes?"
[2306:2009'24] <Beeftop> RIKER: "Yes, I am."
[2306:2009'24] <Beeftop> PICARD: "Excellent, excellent."
[2306:2009'24] <Beeftop> RIKER: "Say, I might have to do a number one while doing my number two, eh?"
[2306:2009'24] <Beeftop> PICARD: "Ah-haw-haw! You are as usual the most witty of fellows."
[2306:2009'24] <Beeftop> RIKER: "Yes."
[2306:2009'24] <Beeftop> [Enters Data.]
[2306:2009'24] <Beeftop> DATA: Hello! I am here to relinquish my digestive system of the burden of its processed wastes. Please excuse me as I attend to the facilities.
[2306:2009'24] <Beeftop> PICARD: By all means!
[2306:2009'24] <Beeftop> [Data removes his trousers and approaches the sink in which Picard is washing his hands. Picard looks on with horror as Data leaps up and hops on to the sink, his buttocks clenching firmly against the porcelain as he jovially deposits an odd assortment of mechanically digested material.]
[2306:2009'24] <Beeftop> PICARD: >:O
I'm just a little boy.