The weirdest thing that happened to me like this was when I was in Northampton and this bloke stopped me to ask if I knew where the chemist's was; he was in his car, parked at the side of the road. I told him and toddled off, then about ten, fifteen miutes later he came pounding up to me, on foot this time, and asked if I wanted to go out with him that evening. He seemed like a perfectly nice sort of guy, but it did strike me as a bit odd to just ask me out, absolutely randomly, when we'd only laid eyes on each other for about five seconds. Suffice to say, I declined the offer, but he insisted on giving me his phone number and I ended up accidentally nicking his pen off him.