The toxicity of Prunus laurocerasus is often overstated. In truth, it's no more poisonous than other Prunus species including cherries, peaches, almonds, nectarines, and plums. ONLY the completely ripe fruit is edible, and in the case of Prunus laurocerasus it should be black and taste similar to cherries. It's the leaves, seeds, and unripe fruit that contain cyanogenic glycosides which are only toxic when ingested. If the fruit tastes bitter or like almond, that's the cyanogenic glycosides, and the fruit isn't yet ripe. Simply spit it out. It's not terribly dangerous. Though they contain the same chemical in higher concentration than even unripe fruit, almonds are eaten in mass. It would take about 1000-1500 almonds in one day to achieve a lethal dose.
