Lavanya invited a prospective victim to lunch.
After the lunch they finished off with figs and grapes freshly picked.
“Just one apple left”, said Lavanya, “I insist you have that.
“No”, said the guest, “I couldn’t”.
“Tell you what”, said Lavanya, “we will share it” and promptly sliced it neatly in two with her sharpest knife.
The guest and Lavanya started to eat their respective halves when suddenly the guest’s eyes rolled towards the ceiling and he keeled over backwards stone dead.
“Another victim successfully killed,” thought Lavanya.
Why was Lavanya not poisoned after eating the apple?