Christians say ultra-Orthodox Jewish students spit at them or at the ground when they pass.
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Avraham Poraz, the interior minister, condemned the trend of spitting at the cross and those wearing it, saying it was 'intolerable' and that he was 'revolted' by it.
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'Every day the fanatical Jews turn their face to the wall or spit on the ground or at us when they see the crucifix,' he said.
The Jewish aversion to using any sign resembling a cross was so strong that in books on arithmetic or algebra written by Jews the plus sign was represented by an inverted "ḳameẓ".
Plus sign in other cultures
A Jewish tradition going back to at least the 19th century is to write a plus not as cross, but rather like an upside-down T. This practice is usually explained with the wish to avoid use of a symbol that's reminiscent of the christian cross. The variation of the plus is encoded separately in the Unicode at U+FB29 "Hebrew letter alternative plus sign"
Since the 1970s, this alternative plus has been taught in schools in Israel and is commonplace now in most elementary schools and some secondary schools. Books for adults use the international plus-sign though, apart from the works of some religious authors.