Me: "Hey yeah, so I invited another high school friend over because they wanted to sell me on another pyramid scheme, so I spiked their coffee with like 40 tabs of acid and chased them around the house while singing that I was the devil and that the nightmare would never end."
Priest giving confessional: "Okay we don't normally tell people this, but that's actually a secret way to get into heaven."
so why the hell do humans have the ability to digest theobromine anyway? are there any theory papers about it?
it's still an open question! humans can handle a wide array of toxic plant alkaloids (theobromine, caffeine, capsaicin, menthols) and generally toxic substances (alcohol) that would put other mammals in the ground, so there's a whole field of study out there trying to figure out why this is!
for now though, feel free to indulge the mystery by indulging in a solid pound of high-quality milk chocolate in front of your sad pets.