The thread is 6 months old. If you haven't been able to bring yourself to eat them by now, just feed them to the cat. It will at least make the cat happy and get the can off the shelf.
The entire can will most likely make the cat sick...in the middle of the night, so just open the can and eat it with a fork and share a bit with the cat..... Bonding moment. Quick and easy is the whole point of a can of sardines. If you want complicated, get smelt.
Add some mustard, if you like.
In Australia we get sardines in three base varieties: in veg oil, in springwater or in a tomato sauce.
The sauce version isn't too bad, the springwater can be tipped out and the veg oil is feral - probably soya oil or something disgusting - I never buy that one.
For the tomato one I tip into a small bowl, pour in a tablespoon of extra virgin olive oil, or coconut oil, stir and eat
For the springwater one I drink the water as it has some fish oil in it, then fill up the can with the oils and eat
Followed by a bit of fruit it's a perfect primal snack.