The Genie had seen it all.
"I wish I was Perfect!"
"I wish I was popular!"
"I wish everyone would love me!"
Somehow it always ended up the same way. People often blamed him when their wishes turned out bad, but he had no control over the magic. It activated the moment they said their poorly thought out wish. His only job was to give them a warning before they said something stupid.
A lot of people ended up saying something stupid anyway.