How many medical doctors are still employees at mcdonald's?

seems like an odd question, doesn't it? i'm sure growing up many m.d.'s may have at one time worked at a mcdonald's or some other fast food establishment in order to earn money to pay for school or to just have extra spending money, but i doubt you'll find very many m.d.'s who profess to currently being employees of mcdonald's just because they used to work there. which brings me to my question. i was watching some show on tv where kirk cameron and this other dude were trying to get people to admit that they were liars, thieves, and adulterers because some of those people may have done those things in the past. admittedly, i have lied in the past. i don't do it anymore. does that mean i'm still a liar? am i forever marked as a liar because i used to lie? seems pretty stupid if you ask me. what do you think?