At first I thought it was the key fob boot release being bumped in the wife's handbag but yesterday I was in the garage with the keys on the bench and it popped right in front of me.
This happened again tonight. Keys definitely not being bumped accidently.
I can only think this is one of three things,
There's a short somewhere and the car is electronically popping the boot (odd though as the car hasn't moved since Sunday morning, though the drive on Sunday detoured onto some rough dirt roads

There's someone nearby with a garage remote etc that is interfering with the keyless entry and popping the boot (not sure how this works)
Or, the spare set of keys that have been lost in the house for a few months now are going flat and the low power to freaking the fob out and popping the boot (again don't know if this is possible)
I'm worried if I leave the car somewhere in public the boot is going to release itself.
Has anyone experienced this or have any ideas as to what is happening?