The Travellers' Curse After Misdirection

(from the Welsh)
May they stumble, stage by stage
On an endless Pilgrimage
Dawn and dusk, mile after mile
At each and every step a stile
At each and every step withal
May they catch their feet and fall
At each and every fall they take
May a bone within them break
And may the bone that breaks within
Not be, for variations sake
Now rib, now thigh, now arm, now shin
but always, without fail, the NECK