Science Fiction

I won't pretend to have read any science fiction, but in the spirit of egalitarianism I've decided I might as well try and write some, so here goes:

"Has anyone seen my bunsen burner?"
"Never mind your bloody bunsen burner. Where the hell is my litmus-paper?"
"It's over by that pile of test-tubes over there next to the magnesium."
"Oh thanks."