My father is like that, always trying to argue against someone's preference as if it will change. At one point I discovered he HATES the idea of flavored coffee, instead of just straight black, and I got to have a field day throwing the entire list of arguments right back at him in rapid succession.

• You don't like...
• Have you tried it recently?
• This one really good, much better than other ones you've had before
• You should try it again
• It's really good for you
• You know your tastes change as you get older
• Just try a little bit
• It's not going to hurt you
• That doesn't count, you barely tried it, take a bit more