intruder alarms are largely product knowledge,
you many be top man at XYZ Security & know the Galaxy like the back of your hand
given the job of task of taking over & extending something which isn't a Galaxy you made make yourself look a proper tit.....
on one the 6 premises I have been to today, I had an in depth conversation on how to replace the rear wheel bearing on a FJ Yamaha (f'kin complex in laymen's terms) an old bloke who did financial stuff for the council, he's not a motor engineer but has the ability to do it because it interests him
If you have an interest in your job you probably what to learn stuff about it