I took this opportunity to inform my daughters in my best fatherly voice that, I did'nt know why the book was a classic but the important thing here is to see how "this is how people think and behave when they take drugs!" The confusion of poor Alice mirrored the confusion on my daughters faces and, since Alice was totally at the mercy of creatures who had no basis in reality and who spoke a dialogue that also had no basis in reality, I am pretty sure that this impressed them greatly.
Score one for Dad!
To make my message about drugs really stick, next week I plan on showing them a videotape of a Pink Floyd concert.