I once got into an argument with a coworker about the non-reactivity and biocompatibility of PTFE (Teflon). What a fool: I had worked with the stuff on medical devices at a previous startup.
In any case out of annoyance I swallowed some teflon plumbing tape. A few days later I had to take an international flight and, ta-da, excreted it in the aircraft toilet. That was lucky as I had a convenient metal shelf and not a bowl of water. As I had predicted it was intact and perfectly white.
I sent my colleague a photo from my phone. He was annoyed when I got home.
PS: I had been carrying around a cheap disposable pen for this purpose. I stole it from his desk.
In any case out of annoyance I swallowed some teflon plumbing tape. A few days later I had to take an international flight and, ta-da, excreted it in the aircraft toilet. That was lucky as I had a convenient metal shelf and not a bowl of water. As I had predicted it was intact and perfectly white.
I sent my colleague a photo from my phone. He was annoyed when I got home.
PS: I had been carrying around a cheap disposable pen for this purpose. I stole it from his desk.