Sorry to hear Nath, terrible ... just terrible ...
A similar thing happened to me a few years back, had been working on my Mk2 16v and left the bonnet ajar on the back of the drive. Got home from work following day - went to move it - car just kept turning over and over and not firing. Lifted the bonnet and some thieving &^%$££ (you get th idea !) had stolen the dizzy !!! The dizzy !! Couldn't believe it someone had come around with correct spanners and removed it broad daylight !!!
Some people have the most incredible audacity !