Waiter, There's a Worm in My Cocktail

Graham likes making cocktails and was showing me some of the ingredients tonight. He produced a bottle of Mezcal which was introduced to him by his friend, Michael. He liked it so went and bought the cheapest bottle he could find. He hadn't noticed until tonight that it has two worms in it. That's them right at the bottom.
It's 37% Alc. Vol. so they were not alive but presumably well preserved.
I also learnt that Chartreuse is 55% Alc. Vol. But no worms.