- What did you do now?
- What do you mean "What did you do now"?
- You were laughing.
- So?
- That's your mischievous laugh.
- No. That's my evil laugh.
- Evil laughs go "Bwa-ha-ha-ha-ha!"
- Ah. . . BWA-HA-HA-HA-HA!!!
- Well?
- Well what?
- What did you do?
- Practice.
- Practice what?
- My laugh, of course.
- Heh.