The bartender asks what they would like to drink. The first scientist says "I'll have a glass of H2O please." The second scientist says "I'll have H2O too." The second scientist dies.
Credit to my little brother. I don't know where he got it from.
Many of the jokes are contributions from our users. If you find anything offensive and against our policy please report it here with a link to the page. We will do everything to make this an enjoyable platform for everyone.