I'm a Christian too (yeah, there are all kinds ) and I too don't think that riding with the opposite sex, even when one is married, is de facto "an appearance of evil".

This type of perspective is an argument of convenience.....ergo, don't ride the with married men either then, as the potential for *****exual sex would definitely be "an appearance of evil". Just because a married man is not tempted by *****exual sex but might be tempted by hetrosexual sex does not negate the "appearance of evil" in either case.