I've worked as a PA for a very wealthy director for a number of years.. I am, on the other hand not at all wealthy and earn considerably less than him. He is a nice person to work for and is always respectful and polite. Every year at Christmas he buys me a nice gift to say thank you for my work over the year. I've always given him a card but should I buy him a gift too? I never have previously but I'm starting to second guess if I should?