Dentist
You have to
You don't have to
You can
You can't	Tour Guide
You have to
You don't have to
You can
You can't	Politician
You have to
You don't have to
You can
You can't	
Photographer
You have to
You don't have to
You can
You can't	Police Officer
You have to
You don't have to
You can
You can't	Hawker
You have to
You don't have to
You can
You can't	
Clown
You have to
You don't have to
You can
You can't	Zoo keeper
You have to
You don't have to
You can
You can't	Waiter /waitress
You have to
You don't have to
You can
You can't	
Drug Smuggler
You have to
You don't have to
You can
You can't	Movie producer
You have to
You don't have to
You can
You can't	Private detective
You have to
You don't have to
You can
You can't	
TV presenter
You have to
You don't have to
You can
You can't	Street sweeper (cleans the streets)
You have to
You don't have to
You can
You can't	Property agent
You have to
You don't have to
You can
You can't