Beware of Trickery
Now, beware of trickery from potential intruders. This person reveals that the “switching of barbecues” ploy is common among burglars. Your neighbor claims they needed to borrow your barbecue for a cookout, and because yours works better. In recompense, said neighbor offers you tickets to a show. Then, while you’re gone, they’ll strike.

provided by constative.com
It’s a well-constructed ploy, to be sure. Anyone could fall for it., and why wouldn’t they? But you shouldn’t. If you don’t know this person well or trust them with your life, chances are they’re out to get something from you. There’s nothing wrong with being a little paranoid when it comes to situations like this.