This is what I tell all of my lady friends If you are going to meet some one and get on a bike or in a car basically with a stranger, FIRST pull out ur phone ask the guy to smile say "I"M sure you don't mind" take his pic and one of the license plate and send them to your family or friend Right then and there!
If the person has ANY problem with this! .....then you just solved your most imporntant question.......SHOULD I OR SHOULDN'T I.
Have a good time BUT stay safe out there.
Nelson