I don't just fear starfruit, especially when cut and used as a ninja weapon like Janna suggested, but there are 2 others which can be lethal to me.
Orange juice and bananas. As you eat your Cheerios and slice a banana into it, and pour yourself a glass of liquid sunshine, just think of your old friend friend Crotchety who this may accidently be his last meal.
Imagine a Mafia hit man, rather than put a bullet behind my ear, can simply feed me orange and banana smoothies abd I'll wind up in a body bag by the end of the day.
Another baffler for CSI.
By the way I answered comments yesterday and plan to in the future.
Unless I'm sick.