Though schmuck is considered an obscene expression in Yiddish, it is becoming a common American idiom for "jerk" or "fool". It may be taken as offensive, however, by some Jews, specially Individuals with strong Yiddish roots. The AIMI-TE can be a practical test for citizens in all degrees of coaching, http://ichliebehaustier.de/schmuck-verkaufen-ein-leitfaden-fur-den-erfolgreichen-verkauf-von-schmuckstucken/