John? John are you ok? You haven't taken anything weird lately have you? You're acting a little... bubbly?
“Anything weird?” John frowns, now they come to mention it, he does feel a bit… odd, and not in the usual gravity-induced way. It’s something on top of that. “Uh, no… well… just the regular John’s-on-Earth cocktail” He says, “but that shouldn’t mean… unless… hang on, I’d better just check the dosage I took… I…” His hands are shaking slightly, and he stares at them a little disconnectedly. His mouth feels like sandpaper. “Uh… I think I might have accidentally overdosed…” John just about manages, his knees have gone all funny under him. “Uh…”