alert barrel cannon caution comic comical concept conceptual condom contraception contraceptive disease free health healthcare healthy humor humorous humour humourous image intercourse isolated isolation latex medical message metaphor metaphorical object photo photograph picture prevent preventive protection protective resource safe sex sexuality std stock symbol symbolic symbolism symbolize warn warning weapon 3D illustration love lubricant lubrication penis protect red risk rubber safety Sensuality sexual sperm white Asia bottles civilisation contamination damage danger death decay Dirt dirty disaster disposal dump ecological ecology ecosystem Eichhornia environment environmental fish garbage grunge hyacinth invasive nature patterns of decay plastic poison pollute polluted pollution poor problem problems recycle river rubbish scrap sewage toxic trash unhygienic urban urban decay waste water