No offense, but I think you gave this a guy a hard time.

He's a stranger in a sense like you mentioned and doesn't know you enough to know that he needs to be patient and take time. Think, a lot of girls out there do kiss and "whatever" on the second date...he probably has dated them before. Maybe he was in a romantic mood because he likes you. If it was me in the position I would have maybe giggled my way out of it and said "I appreciate the offer but I'm a patient gal"...or something cheesy along those lines. Personally I wouldn't kiss on the second date but if I was feeling an intense connection maybe a small peck goodbye would be nice. But it all depends on your comfort as the woman. I wouldn't feel bad if I were you about the situation, just explain later that you weren't comfortable yet and if he reacts negatively then hell with him anyway...but understand his intentions too without being harsh...everybody deserves a chance.