We once filled a 12"(len.)x4"(diam.) farm irrigation pipe with gunpowder and literally erased our old stinky recliner chair from existence.

A friend of mine can probably match that.

When he was a machinist's apprentice in Germany, he and his cousin went out in the countryside with a 55 gallon oil drum with the top cut out of it; a coffee can with a tight fitting lid; and some gasoline.

But wait -- I told this story once before! See here.

tanstaafl.