Last night, during a shiur on common Kashering questions, I was asked about a unique method of kashering a sink. My sense is that this approach does NOT work... but it does sound entertaining.
Normally, we kasher a sink by heating water to a high boil, and then pouring it all over the surfaces of the sink. Some authorities also place a heated stone on surfaces of the sink while pouring the water, because the water cools off between the time it leaves the pot or kettle and the time it strikes the sink's surface. The process is tedious and messy.
So the new method (new to me, anyway) is this: Spread brandy or whiskey over the surfaces of the sink, and light it on fire. Essentially, flambe the sink.
Definitely a guy's way to kasher.
Again, my impression is that this does NOT work, from a kashrut perspective; as I understand it, the heat from this fire is directed outward, and the material beneath the alcohol layer is not heated. [Watch the video I linked on "flambe" above; the crepe certainly doesn't show any sign of singeing. On the other hand, perhaps it does get hot enough to reach the level needed for kashering.]
Have you heard of this? From a reputable source?