Killed a couple of birds to put them out of their misery - seagull who got mangled in a propeller and a sparrow mangled by a cat.
Killed insects by various means - swallowed a few by accident, stood on by accident and wasps as a point of principle.
Fish, crabs, lobsters etc., - obviously, they are not nice to eat still alive.
So far after over 330 years of driving not actually run anything over. Hit a sheep in fog once but I was travelling very slowly as I couldn't see owt. Sheep are bloody hard to see in the fog btw :blink: proof if needed that ID was done by rank amateurs. Consequently, I am always baffled by road kill. Do people aim for the poor sods?