The grounds immediately surrounding Lucky's are usually populated by several different types of enemies, making fights between them a regular sight in the area. It is easy to get caught in a three- or four-way battle when coming out of the store.
Lucky's consists of two rooms, a reasonably small shop area with various shelves, a counter to the east, and a seat next to a bed to the north. In the north east corner, there is a small bathroom with a toilet and sink.
Since the shopkeeper (the scavenger) doesn't sell everything that's in the store, you may steal from them. If they detect the theft, they will take the stolen items back and you will be able to buy said items from them.
pc You could increase the scavenger's Repair skill by 10 points (using workman's coveralls clothing on her) up to the maximum 100 points allowing vendor-repair-only items to be fully repaired. To activate the glitch, you have to exit outside, save, load and enter again. [verified]