Tommy I share your paranoia - some years ago bought (mail order) a big Foc-off lock and chain, and needed to speak to the guy selling it. What a cheery chatty soul he was, wanted to know all about what I rode etc etc, how I was going to use the lock (as in where was the bike kept?) and finally what was my address for delivery? sudden concern about where this was going - visions of it arriving closely followed by a guy with a spare key and a van....I had it sent to my work address. And paid paypal.
Paranoid? Maybe. Held on to the bike though. For the same reason I don't have one of those "Think Bike" stickers in me car window for people to see when it's parked in my drive. ("Think Bike" as in "Think what he's got in his garage".)