Related Clues:
- Warning signs of half the adult population losing head
- Signs nothing -- and people sail without trouble
- Distinctive odours, as evident around Italian's capital
- Memory triggers, often
- They may be foul
- Real stinkers?
- Black cats, perhaps
- Dump outputs
- Café lures
- Kitchen allures
- Red skies, to sailors
- Bakery come-ons
- Eclipses, to the ancients
- Bad signs
- Signs seen by fictional voyager heading north and south