The ONLY time I used a restroom in France, when I stopped there on a trip to England, I was completely weirded out by the FEMALE attendant in the restroom. I had no idea if I was supposed to tip her or not but it seemed rather odd to me to have a female attendant in the men's room.

BTW, I did not tip her as I did not have any interaction with her other than the uneasy interlude at the urinal when I noticed her watching me. I was able to wash my hands and leave without any assistance from her. I later surmised that I should have tipped her simply for keeping the restroom clean. Oh well, next time.