Imagine that at the end of Dumbledore's speech at the beginning of the year, he asks if there are any questions, and one first year muggle-born raises his hand, whips out a smart phone and asks for the WiFi password.
And then Dumbledore just casually says "Sherbet Lemon, with a capital S", and commenced the feast like its no big deal while the non-muggle-borns think WIFI is some sort of secret society.
