The use of loud, abusive, or otherwise improper language; unwarranted loitering, sleeping or assembly; the creation of any hazard to persons or things; improper disposal of rubbish; spitting, prurient prying; the commission of any obscene or indecent act, or any other unseemly or disorderly conduct on the premises; throwing articles of any kind from or within a building; or climbing upon any part of a building is prohibited.