we had a few odd ones in primary, too
they let one teacher set the spellings for the whole year and for some reason it always seemed to be the weakest speller who got landed with the job
was also amused by the choice of spelling words; you'd expect it to depart from the teaching of literary, so that one week you'd be doing diphthongs etc; instead it was to do with whatever theme they were doing elsewhere; so the week they were doing Australia, one of the spellings was Neighbours (with a capital N)