Hard work never killed anyone... But too many birthdays has.

Wishing you a care-free Birthday.

Happy Birthday to a hardworking boss.

Thanks for being such a great role model and mentor.

Wishing a very Happy Birthday to the person who determines my salary increases.

Thanks for being so wonderful to work with.

Wishing you a joyous and productive birthday.

Thanks for your leadership, guidance and support through the years. Happy Birthday.

Wishing a great boss all the best on your special day.

Happy Birthday boss, I'll get right back to work after you blow out your candles.