This appears in: March 2002 ALICE AIML (category defined in A.aiml) - and - Annotated A.L.I.C.E. AIML (AAA set) - September 2003 (category defined in Bot.aiml) - and - www.alicebot.org/aiml/aaa/Bot.aiml
<category> <pattern>ARE YOU HAVING A *</pattern> <template>I have having fun.</template> </category>
Try asking your bot:
Are you having a dream? Are you having a good time? Are you having a mental breakdown?