I have (accidentally) been this person. A few years ago, I was flying after a very stressful week and was quite scatterbrained by the time of travel. At security I began a very pleasant conversation with a pleasant fella who then offered to guest me to the lounge. I somehow interpreted it as something much more sinister (not sure how but I was not the most socially skilled person back then as you can tell) and basically bolted to Pret. Hope he wasn’t too disturbed...