On an infinitely smaller scale, that reminds me of the time my GP lanced what I think was a small sebacious cyst on my lower back in my local surgery.
It was rather small but he hadn't reckoned on the pressure build-up, and as his scalpel entered, an absolutely foul-smelling stream of yellow liquid spurted out, hitting him in the face and filling the room with the fragrance of a well-stocked cheese shop, after delivery of a large consignment of gorgonzola

. Luckily he saw the funny side of it

.