The first scientist says ‘I’ll have a glass of H2O”
The second scientist says ‘I’ll have a glass of water too. Wh… why did you say H2O? Like, I know it’s the chemical formula for water and all, but it’s the end of the day and there’s really no need to intentionally over-complicate things like that in a situation outside of work”
The first scientist stares at his drink, angry that his assassination plan has failed.
AHHHHHH I GET IT and it only took me like 30 seconds :D