A person with ginger hair. Derived from acting 'gingerly', being cautious.
Attention can be drawn to the proximity of a ginger with the exclamation 'I have a cautionary tale to tell', which will alert your friends to the incoming, whilst causing no unnecessary alarm to your cautious intruder.
When you drop your keys in San Francisco and kick them all the way to Seattle before you bend over to pick them up
A prision inmate should be cautious when picking up a bar of soap