Connecting the dots

One recurring feature of the televised Thomas and Friends is a connect the dots puzzle segment. A bunch of dots (admittedly making a pretty obviously train-shaped object) are placed on the screen, and then an animated pencil starts connecting them. You're supposed to try to guess which of Thomas's friends it is by the time the pencil finishes; I can never tell which engines are supposed to have longer profiles or taller steam funnels or whatever, so usually it's just something to pass the time between the sketches. But Meh reported that today, Zachary looked at the unconnected dots and said "seisss" (that's his word for 'six'. Also the Spanish one; see, he's already multilingual!) When the dots had finished connecting, it was indeed Percy, who's got a big six painted on his side. Coincidence?