Categories Jokes I heard that Oxygen and Magnesium were going out and I was like OMg Post author By chemistryjokes Post date July 23, 2021 I heard that Oxygen and Magnesium were going out and I was like OMg See also What did the cat say after drinking methanol? ← I was water before it got cool → The optimist sees the glass as half full. The pessimist sees it as half empty. The engineer sees it as twice as large as it needs to be