I've been working away from home for the last week or so (over xmas

) and I wanted to get mandy something "nice" for xmas. I'd already gotten most of her gifts but I've always wanted to get get her a little vibrator or other sex toy. So last week I decide to go to the local Hustler shop and see what I can pick up, and seeing that I didn't have that much of a budget I was looking for something small.
*Note that this was my 1st ever time in any type of adult store*
So the whole thing happened within 2 or 3 minutes:
Me walks up to the gate and rings bell. Gate opens and I enter.
Me: Good afternoon. (I notice I'm the only one in the store)
Porn Shop Owner: Hi. Can I help you with something?
Me: So how do your rentals work? (this was both a genuine attempt at finding out rental prices and a sort of icebreaker for me. I wasn't gonna go "show me the dildos")
PSO: We don't do rentals.
Me: (slightly taken aback) You don't do rentals?
PSO: No (points to a sign that says No Rentals). Is there something else I can help you with?
Me: No thanx, I'll just have a look around.
PSO: I don't allow browsing in my store.
Me: (further aback) You don't allow browsing?
PSO: Guys come in and scratch around and damage my stock and leave. *looks at me in a weird way*
Me: No, I understand.
I then proceeded to make a lame excuse about being late for something and that I'd come back later on that afternoon. I even enquired as to the closing time to make it seem more convincing but I fear he could tell he'd never see me again.
Questions:
1. I can understand the no rental policy with piracy being what it is, but no browsing? Even for a first-timer that seems a bit strange.
2. Is there some kind of etiquette that goes along with being in/buying from adult stores?
Thanks in advance
