This was ALMOST a story worth sharing. The author made a big leap in their conclusion without enough evidence to be compelling, and basically just confirmed their friends' judgements that they were being paranoid. I feel a little sad for the author and hope they break out of their box and live a little. Talk to more strangers. If it seems shady, definitely get out of the situation, but unless something ACTUALLY happens, why waste someone else's time with a story that doesn't have a compelling conclusion?