Will a Free Key Ring open your doors to intruders?!

A PUBLIC SERVICE ANNOUNCEMENT:: There is a syndicate of criminals presenting themselves as sales promoters who are giving free key-rings holders at petrol stations or parking lots. The key rings have a tracking device chip which allows them to follow you. Please don't accept them. They select their seemingly well-to-do potential victims and if you accept, then you will be in for their tricks. The key holders are very beautiful & hard to resist accepting but remember you may end up paying more than a key holder would cost, including the risk to your life. Please advise your family members as well.