Sandwich

Funny how we are allowed to put any combination of fillings in  a sandwich - marmite & peanut butter (now sold ready-mixed), marmite & golden syrup (one of my favourites), avocado & sugar, anchovy & grapefruit (I just made that up) -  but it is prescribed with whom we can associate. 

Maybe we can learn lessons from sandwich fillings.
People's tastes differ. Accept it.
Things that seem on the face of it to be totally unblendable, turns out to be the perfect match for someone. Be open-minded.
Maybe even for you. Be adventurous.