Procrustes

Procrustes was a son of Poseidon, a smith and a bandit. He lived on a pass on Mount Korydallos which was part of the sacred way between Athens and Eleusis where he used to lure travellers to their deaths by offering them rest on an iron bed. Once his offer had been accepted, he would make the bed fit the traveller, either by amputating his legs or stretching him out sufficiently to fit. Theseus put an end to Procrustes' michief by giving him a dose of his own treatment.