Diesel Theft info

Bastards.I came out the house this morning to find some **** had wrenched my filler cap off and tried to syphon my diesel out.Would of made them drink it if i caught the bastards.
Anyway for usefull info if anyone wants managed to get a locking filler cap today (apparently they wern't fitted to original 200 tdi's).Got it from the local motor factors. Its a "high tech parts PLC6092" item and fits perfectly and cost less than £10.

Thanks might have to get one of them

They can try and steal my veg oil. Doubt they would get far