The IRA did a lot of harm at many levels.
As a low-level harm, to this day my wife and I can not stay in a room at night without the curtains drawn closed ......... this as a result of many years on OMQ in BFG.
At least I no longer check under the car though.
I hadn't thought of that but so true. When going to a pub or restaurant, even now I instinctively find a seat from where I can see the entrance.