"I wish you couldn't use a calculator"

What if he uses someone else to do the math for them?

"I wish you could never talk to anyone or anything other than me"

Some bystander tells the genie that there is no more wishes. This is legal because they can still talk to him.

frick

They also might just say “Alright you’re out of wishes”

Seems legit, until you ask for a billion dollars, gold pirate coins etc, and he just gives you 10,000 in a pile that feels like a billion to him.