Lol - there was nothing outrageous or spectacular I can remember having done as a kid (except for having tried to decorate a room wall as a 2 - 3 year old with a drawing - no need to mention the painful consequences - or being a nuisance to cyclists when crossing a calm, narrow street next to a small playground for kids). Girls had not much freedom by then, and education was rather strict.
No, there was no mouse to catch, to frighten other people, and seeing dead animals was too saddening.
During summer holidays at my grand-mother's home, though, I caught glow-worms and other insects in the gardens and meadows near the house, which I showed my grand-mother and my parents, before we released them where I found them.
(Lampyris noctiluca)
Once, I caught a cute little wall lizard near the vineyard, which I wanted to show to my grand-mother, but it escaped and hid somewhere in the kitchen. All we could do was to leave the kitchen, with the windows wide open, for an hour or so to let it find it's way to the garden ...
(Podarcis muralis)