Keep forgetting I've got a bolt hole over here

Monumental "Nooooo" moment today for one of my trainees: he finished the final set pins on the last end of his toolbox project, went to assemble it... only to discover he cut them in entirely the wrong direction 😖😖😖

<Looks around App thoughtfully> Spacious in here, might knock though to the parlour though, really bring the light in...