He loved playing. He took a copy of the rules home so he could play with a friend. I liked it when the MU cast a sleep spell and took damage and he said "Magic hurts but sure is powerful."
This is one of the things that made 0e different in general. A first level 0e magic-user may have had only one spell a day, but some of the spells available were very powerful: sleep and charm person, especially. First level were toned down in power in later editions, which I always thought was a questionable idea.