Vigilance can pay off. Many years ago, a friend of mine had the boot of his Cortina forced at work and four items were stolen, including a trolley jack and a socket set. It really upset him and he constantly referred to it for weeks afterwards. I didn't notice that he always recited the four items in the same order until I was reading the small ads in the local paper six months later and realised that I had read one advert in 'his voice'. I rang him, he lived some way away and wouldn't have seen the paper, "Does this sound familiar?" "They're mine!".
He rang the cops and they went round and got the stuff back.
If they hadn't written the advert in the same order as he went on and on about it, I might not have spotted it...