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 announcement be-careful beware caution consumption faucet health informing listen Look looking lookout protect protection rules signs tap undrinkable unhealthy water bait baits elimination foxes information poison poisonous toxic toxicity toxins no-diving shallow deep polluted pollution water-pollution water-toxicity weathered contaminated contamination