is there any possible reason why a HOLE PUNCHER — or BODGER as my mum wd have called it — has a LOCK on it, to keep it in the shut position?

except so as to cause ensuent hilarity from afar when it clicks shut by itself and no one in the office even imagines to open it and BREAKS THE BODGER before they discover it

(luckily we spotted it) (well my boss did)