I invented a double-entendre machine, but the knob kept coming off in my hand.

I invented an instant English-to-Spanish translator, but Πήρα τη γλώσσα λανθασμένη.

With the adept use of 8 shaving mirrors and 1 clothes mirror, I can view the scene outside of my bed room window while making a cup of tea in the kitchen! I am a nosey neighbour!!!

I invented nipple creep to undermine ZK.

I invented the internet.