[Merlin]

That's why she was scary.

If you think the knife was scary - you should hear her sing! Lotte Lenya was regarded as one of the best interpreters of her husbands songs, but her time and pitch can take a bit of getting used to.

Oh, and for those who don't know her husband, he was none other than Kurt Weill, composer of the Threepenny Opera. In other words, the guy who wrote "Mack the Knife".