Simon frowned a little, thinking back on how much the potions had cost and how much money he had on him at the moment. How much was in his vault was a mystery -- enough, that was all he knew right now -- but there was too much gold in his lockbox for what he'd budgeted for the potions.
"Are you sure?" he asked eventually, not even really sure whether he was talking about Severus being sure he'd accounted for labour or being sure he couldn't taste anything. He walked his fingers over the stacks of coins again, recounting them, and inhaled deeply through his mouth -- no, the taste was still there.
"Almonds," he added, almost as an afterthought. "Bitter almonds. Cyanide. But without the classic signs."