What is the proper way to use the "ex" prefix to more than one word?
- He is an ex-school bus driver.
- My ex baseball coach taught me.
- I am an ex-Fish and Game Warden.
- "ex-school" seems awkward. It looks as if he is a bus driver for ex-schools.
- "ex" by itself (no hyphen) doesn't seem right either. Is it?
- "ex-Fish" just sounds ridiculous.
Is this correct usage? Can each part be hyphenated, or the hyphen dropped altogether?
Is there another way to make this more clear while still keeping the "ex" prefix?