Green tatties

[coreopsis]

OK.I'm not hallucinating,I checked the info about green tatties.It seems that they contain the substance that is poisoning but I never heard of it.I store my tatties in a wicker basket in the corner of a kitchen-not a lot of light going there.The kitchen has the window facing east(rubbish light) .I remember being a kid,the green tatties were treated as any other ones(maybe because there wasn't plenty of food around).
Apologies to all of you,I'm an ignorant in chemistry but I used my green tatties because I used to eat them as a kid(nothing happened) and I didn't have any other ones(Pinocchio,Desiree in the garden)

[King Carrot]

I'm just curious-how something perfectly edible left on the worktop for about 10 days may turn into something poisonous???

do you do this with bacon or fish on a regular basis then

[coreopsis]

Bacon or fish is another group of food...