[angrydan]

It is parked outside, but i have been noticing this behavior over the course of two months or so. I mean, I guess that is always a possibility, but someone would have to be hitting my car up on a regular basis! I also have my Legacy parked right next to it, and the gas always seems OK in that car.

In the absence of any other explanation, I guess I could go old school with a locking gas cap!