Mother-in-Law Portion

Many times I will say that I don't eat something without even having tried it.  Just a few months ago while eating out with my boyfriend who had oysters - I said "no" when he offered me one stating that I didn't like them.

How do I know that?  I had never tasted an oyster - I had made that determination without even trying.  

Decades ago someone advised me to have a "mother-in-law" portion.  That was just a small bite that would let me taste the item, determine if I liked it and not insult my host or hostess.

This year I have decided that I won't say - 'I don't like' - until I have had a mother-in-law portion.