I have spent way too much time supervising kids using dangerous stuff. So I automatically start mentally going “no, that is not how you use a stanley knife, put that down” “why is this not in a fume cupboard”?
(Or adults who have volunteered to make rockwall panels but turn out to be less sensible than schoolkids- @Ruffers please never ever let N near an electric drill or even a stanley knife unsupervised ever again)