pɚhˈæps ðə bˈɛstnˈoʊn kˈeɪs ɪz ðə ɡˈɔɪənˌiə ˈæksɪdənt ʌv nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi sˈɛvən, ɪnwˌɪtʃ ɐn ɪmpɹˈɑːpɚlidɪspˈoʊzdʌv ɹˌeɪdɪˈeɪʃən θˈɛɹəpi sˈɪstəm fɹʌm ɐn ɐbˈændənd klˈɪnɪk ɪnðə sˈɪɾi ʌv ɡˈɔɪənˌiə, bɹɐzˈɪl, wʌz skˈævɪndʒd fɹʌm ɐ dʒˈʌŋkjɑːɹd, ænd ðə ɡlˈoʊɪŋ sˈiːsiəm sˈɔlt sˈoʊld tə kjˈʊɹɹiəs, ʌnˈɛdʒuːkˌeɪɾᵻd bˈaɪɚz.
Perhaps the best-known case is the Goiânia accident of 1987, in which an improperly-disposed-of radiation therapy system from an abandoned clinic in the city of Goiânia, Brazil, was scavenged from a junkyard, and the glowing caesium salt sold to curious, uneducated buyers.