A similar thing happened to me, as a teenager 25ish years ago - an elderly relative gave me a slide-rule and told me it could be useful to me in my physics care

A similar thing happened to me, as a teenager 25ish years ago - an elderly relative gave me a slide-rule and told me it could be useful to me in my physics career. Part of me wishes I'd kept it, but even at the time I was given it the thing was obsolete.