That awesome moment when you have a surprise exploding zit that hits the mirror...and then it's over. Non-repeatable.
Unless it's a feruncle.
I am the zit whisperer. Different zits have different ways.
My friend's dad had a feruncle on his back he couldn't get to, and my friend was too grossed out to pop it. I came running! I said, "Have no fear, I got this!" It took over five minutes to work that thing out. First it was a super-thin string of pus, and I said, "It's gonna explode." It did. But it wasn't over. More was coming out, and I got excited because I knew it was gonna explode again. I called it, and it did! I think it exploded three or four times. I got all of it out. It was one of the most glorious experiences of my life. And the bonus was my friend in the other room yelling over and over, "Ewwwww!"
Edit: It was actually more like 10 minutes. Seriously. It was amazing. And oops, I think it's spelled furuncle.