Old dear: "Have you been good ds?"
Ds: "Well mostly."
Old dear: "ooh you have to be good you know, because Father Christmas is coming."
Ds: "It doesn't matter, he still brings presents even if you are not good."
Old dear: [shocked] "Ooooh, no he doesn't, he doesn't come if you are naughty."
Ds: "You're telling a fib. That's a bit naughty."
ooooh shit