access-denied advice alert appropriate-behavior appropriate-behaviour asbestos avoid black care communicating communication concern damage danger dangerous demolition denied destruction directions fence fencing hazard hazardous health-risks keep-out mesh message no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition red requirements restrictions risk risks risky safety sign unwanted warning warning-sign white insiders limited access no public access restriction staff staff only workers air blue cloud cloudscape day freedom horizontal idyllic nature no people outdoors sky anti ash ashtray butt butts cigarette cigarettes Dirt isolated no smoke smoking stub trash box dump dumping flying garbage graphic icon litter notebook notes paper papers rubbish sheets stationery waste flower flower carpet flowers forget-me-no forget-me-not garden plants spring countryside dogs entry footpath gate lead leash notice opening shut entrance vehicles