Joy wasn't so sure her name was all it was cracked up to be.
Most of the time Joy felt cranky and bossed everyone around. She didn't always mean to but it just seemed to be the way she was.
Joy would get hassled by her classmate who could see the irony in her name.
So one day Joy decided to change her name, to Surly! Yep. Surly. She hoped this would create the opposite so she could live the rest of her live joyfully...
More about joy over here.