Inside the console room of the TARDIS, a little gray kitten, and a little brown ferret play happily.
"So, it looks like they're pretty much equally matched." says the Doctor.
"Are you kidding? My ferret is totally kicking the stuffing out of your kitten."
"Well, if your ferret had any sense of discipline, then she would play fair."
"She is playing fair. She's just better than he is."
"But, she is twice his size!"
"Well, if your kitten was half as smart as he claims he is, then he would figure out a way to even the playing field! Besides, it's not my ferrets fault your kitten is weak and scrawny!"
"Are you saying that I am weak and scrawny?"
"You have a problem with that, Spaceman?"
"Well, I may be scrawny, but I am far from weak! I am at least three times your strength, I'd say!"
"Oh yeah? Want to arm wrestle to prove it?"
"Yeah!"
Meanwhile as the Doctor and Donna begin to arm wrestle, the little gray kitten, and the little brown ferret, continue to play happily.
End.