Yes, I had heard of your watermelon trick.
If God is good to me, I will never even have to be in the room with an open bottle of vodka, never liked it and 50 years ago, everyone said you couldn't smell it.
I can.
No, the point of my talking about injecting the oranges, is that it could be any poison injected in the orange.
I know what you meant, but I think for a widespread attack to be initiated, it'd take a LOT of syringes and oranges headed to different areas. Otherwise it's likely to be taken as an isolated and localized incident. Much like the Tylenol murders some years ago.