The other day, I was walking up the stairs and I was walking with a brother from my dawah group. I told him to go up before me because I didn't want to walk up the stairs with him behind me. I did this because I believe someone told me that it's fitna or could cause fitna if a woman walks in front of the man-especially going up the stairs. Now is there a ruling on this or something that would make it clear. You guys know what I mean-because as you walk up the stairs the eye level isn't where it should be..anyway. Is this precaution or just islamic do's and don'ts?