The Royal Society for the Prevention of Accidents Involving Ninjas (or RSPAIN) has this public service announcement available to all ninjas who wish to be safer in the winter.
Be A Safe Ninja This Winter (http://www.thomasscott.net/safety/)
Did you know that less than 1% of drivers have claimed to have ever seen a ninja? With your help we can reduce "ninjaries" to zero!
Oye