The quiet after mentioning TARDIS is a large clue, but Four simply watches his other self run past. He knew well that whatever connection he had with the time stream and the TARDIS was gone. It was discerning but not something he was going to focus on. Not now at least. There was little that could be done about it and, for Four, there was not need to worry.

Taking a more casual stroll, either to spite or help his other self he wasn't sure, he raised an eyebrow. Without a word he reached into his pocket and pulled out the white bag. Taking an orange one he tossed it at Ten.

"I know it would be ridiculous to ask, but simply because I can I will. What number are you? Or shall I hence forth call you 'Cockatoo'?"