well having worked at both a supermarket and a compusa, i've had to deal with stuff like that. But even though I worked at stop & shop for like 2 yrs I never personally caught any one stealing.
But during the indoctrination, they showed us the security dept, 2 people on 24x7 with like 25 cams, but most of what they saw was old ladies with carts with 100-200bux worth of groceries, they'd put those $10 bottles of vitamins or pills in their purses. but they said they would bust any one. I had a friend who was like a head cashier at another store, one day he had slipped something in his pocket, accidentaly, and not taken it out, they nabbed him at the end of the shift, and canned him, no chance to say it was an accident or nothing.
At compusa, we had this one guy, who would come in on saturday's (a "customer" and one time he tried to run off with a computer(compaq). He slammed into the sliding door, and popped it off the hinges, I turned and said "hey" (he had also set off the alarm) he looked at me a sec, I went to go out there, he dropped the pc, and split.
another time he got away with a pc, i chased him out to his car, and he threw it in, and I stepped out of his way.
Another time same guy, came in, and we had had monitors right by the in door, he took one and slid it near the detectors, and went around the customer service desk, and out. then he darted in, nabbed the monitor, and ran out and threw it in his trunk, I ran out and stood infront of the car, and it was a mutt car, had mustang bumper, but was something else for a body. (but it was the same one he'd had the last time) but different plates.
And one time, this family came in, and I saw them milling around the far side of the row of registers, then they came by me, out the door with a cart, with something in it, and a coat over the top of it. the cart set off the alarm, I went out, and grabbed the cart and pulled the greasy coat off, and there where 3 dreamcasts in it, Their like "we'ze paid for this" and another employee came out, and she's like "yeah wheres the receipt,"
Then a manager came out, and the people left me with the cart, and walked out to their van, sayin they had a receipt, and the manager followed them to the car, and read the plates, but when we called the cops, the plates where bust.
I've never really seen some one steal, that would even merrit stealing.
The other day at home depot, I saw a woman, who looked like someone I knew, and she was walking like she was looking for a register, and I was leaving, because they didn't have our tile we wanted, and as she walked thru the door alarm went off, and the cashier by the door, was like who was it, and i pointed the woman out, and she's like, oh yeah, and seemed to just forget about it. I followed the woman. then she disappeared behind a car, I went to see where, and didn't see her. Then I went down a few rows, to the row my car was in, and saw her sitting in a car with some guy, they peeled out of there when she saw me again.(I was pimpin in my nice suit, lookin like a FED)