Hi In the Corner,
With narratives I have found that the company is not interested in exactly what your responses are, they are more interested in whether the salesperson interacted and asked the appropriate questions. So with your example of the luxury handbag scenario, the narrative should include that the salesperson asked where you were traveling and when you responded you had a pleasant conversation about how the salesperson had recently traveled to the same area, or whatever was talked about. You do not need to include the information about Mexico to give the company a good understanding of how the salesperson interacted with you. The other thing you can keep in mind is that this salesperson probably has similar conversations all day long and if your narrative is detailed but generic that salesperson could probably remember a dozen people that she had similar conversations with.
The one thing I am trying to remember as I continue shopping is to not put too much of myself into the shop because it makes me more memorable. An example that pertains to my particular experience, I drive a small sports car and am really planning to buy an offroad truck. I have been looking at trucks while MS'ing, but I probably should be looking at cars similar to my own and leave the truck shopping to my personal time. I am just too memorable with this real life purchase scenario, and have gotten comments from salespeople and manager's about how unusual my scenario is. My point is, if you walk into a store that has 100 handbags and 1 travel bag, be interested in the handbag, any handbag, and you are less memorable. If it is a luggage store, go for the average luggage, not the one of a kind piece on display that no one would buy. And be detailed in your narrative about the questions asked and keep the details of your personal story out of the narrative unless it is really needed.
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"We are all worms. But I believe that I am a glow-worm."
- Winston Churchill
“Don't tell me the sky's the limit when there are footprints on the moon.”
- Paul Brandt