In that there's no danger, getting in the back of that van will be the best day of your life. Art will get deep down inside you and show you things you never knew you had!
It was the episode where Arthur uses your computer and finds all your art. thus beginning the long and parental hated puberty and sex education episode.
Link
RedBastard
Artdecade shows Arthur some valuable life lessons in just being yourself and how to draw some horny ol' bears