Not life, death or love. Just those silly little things which drive you to distraction & make it difficult to resist interfering in the lives of complete strangers
Sticky-up labels. At the back of the neck of a jumper, t-shirt, dress or jacket. Particularly if they are sitting in front of you on the bus or in the theatre. Sit on your hands to stop yourself leaning forward to tuck it in
Bottles on supermarket conveyor belts. Really ought to be laid parallel to the direction of travel. Not across the belt - when they start spinning round I want to lunge forward to rescue them. Even worse when they are standing up, wobbling & threatening to topple