Tonight at the dinner table we had a glass carafe full of water. All of a sudden all 3 of them start crouching down trying to look and talk to each other while looking through it. This was a game they had obviously played before, but not in my presence.
When asked what they were doing they replied they were "skyping" with each other. The conqueror even performed a little rendition of the skype test call.
Needless to say, our last few video skypes with dad have had seriously poor quality! Oh well, it is better than nothing!!