I need a joke in to tell my Hispanic manager!

I need a joke in to tell my Hispanic manager!

I tried telling my boss a corny joke but he said he didn't get it because it was too 'American'(his words not mine). So i told him I'd find a joke in Spanish and try telling him it. I want to make my boss laugh so help me out guys! So if you know any work friendly jokes in Spanish post them here with a translation. Thanks!