It took me days to get over it, and I often went to the place were I buried it and asked for forgiveness but in fact: I had committed a murder in the interest of the animal.
This happened when I was ten – but one year later I found a cat with its head almost shopped off by a *trolley car (*or tram), and of course the animal was dead. Grown-up people stood there, gaping indifferent, they did nothing.
Some time later we discovered that it was our neighbour's cat, (they looked almost the same). But, even if they had looked differently – I would have done the same – and I felt sorry for this one.
Throughout the years I saved many birds and also a wild kitten.
What I can't stand is: that a dead animal becomes run over by cars over and over again.