I used to deliver to a resturant 2 times a week for around 5 years. I always talked to a cook in the back lane where my truck was parked. One day my wife was with me. After the delivery my wife asked me whether the cook was a man or a women.
I didn`t know and had never given it any thought previously. I still don`t know. Upon reflection the cook was just a nice person and i suppose thats all I thought about.