I was making coffee when I accidentally spilled boiling hot water all over my hand. It had the side effect of creating a rather large blister between the web of my thumb and index finger.
The blister was filled with pus – it looked ripe for lancing when you form a fist.
I poked it with a needle and the pus squirted out like it was pressurized. It’s a good thing I took off the white shirt I was wearing. Heh.
Good as new! :)